Add main menu scene, setup framework for orientation switching

Assets/External/Placeholders/PlaceholderCreditList.txt

@@ -3,4 +3,5 @@ https://arongranberg.com/astar/ <- Free version
 assetstore.unity.com/packages/2d/fonts/fatality-fps-gaming-font-216954 <- for some debug stuff
 https://craftpix.net/freebies/free-top-down-animals-farm-pixel-art-sprites/ <- placeholder sprites
 https://bonvicio.itch.io/pixel-art-bonfire
-https://assetstore.unity.com/packages/tools/physics/optimized-ropes-and-cables-tool-287164
+https://assetstore.unity.com/packages/tools/physics/optimized-ropes-and-cables-tool-287164
+https://www.vecteezy.com/vector-art/5380184-phone-rotation-icon-symbol-tilting-screen-flat-design-on-white-background

Assets/External/Placeholders/phone_rotate_icon.png.meta

@@ -0,0 +1,247 @@
+fileFormatVersion: 2
+guid: ea7e819e86dd94d4cb82c1b22e0eee4b
+TextureImporter:
+  internalIDToNameTable:
+  - first:
+      213: -9200460974075412672
+    second: phone_rotate_icon_0
+  - first:
+      213: -2320685753038348737
+    second: phone_rotate_icon_1
+  - first:
+      213: -3973883825926085703
+    second: phone_rotate_icon_2
+  externalObjects: {}
+  serializedVersion: 13
+  mipmaps:
+    mipMapMode: 0
+    enableMipMap: 0
+    sRGBTexture: 1
+    linearTexture: 0
+    fadeOut: 0
+    borderMipMap: 0
+    mipMapsPreserveCoverage: 0
+    alphaTestReferenceValue: 0.5
+    mipMapFadeDistanceStart: 1
+    mipMapFadeDistanceEnd: 3
+  bumpmap:
+    convertToNormalMap: 0
+    externalNormalMap: 0
+    heightScale: 0.25
+    normalMapFilter: 0
+    flipGreenChannel: 0
+  isReadable: 0
+  streamingMipmaps: 0
+  streamingMipmapsPriority: 0
+  vTOnly: 0
+  ignoreMipmapLimit: 0
+  grayScaleToAlpha: 0
+  generateCubemap: 6
+  cubemapConvolution: 0
+  seamlessCubemap: 0
+  textureFormat: 1
+  maxTextureSize: 2048
+  textureSettings:
+    serializedVersion: 2
+    filterMode: 1
+    aniso: 1
+    mipBias: 0
+    wrapU: 1
+    wrapV: 1
+    wrapW: 1
+  nPOTScale: 0
+  lightmap: 0
+  compressionQuality: 50
+  spriteMode: 2
+  spriteExtrude: 1
+  spriteMeshType: 1
+  alignment: 0
+  spritePivot: {x: 0.5, y: 0.5}
+  spritePixelsToUnits: 100
+  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
+  spriteGenerateFallbackPhysicsShape: 1
+  alphaUsage: 1
+  alphaIsTransparency: 1
+  spriteTessellationDetail: -1
+  textureType: 8
+  textureShape: 1
+  singleChannelComponent: 0
+  flipbookRows: 1
+  flipbookColumns: 1
+  maxTextureSizeSet: 0
+  compressionQualitySet: 0
+  textureFormatSet: 0
+  ignorePngGamma: 0
+  applyGammaDecoding: 0
+  swizzle: 50462976
+  cookieLightType: 0
+  platformSettings:
+  - serializedVersion: 4
+    buildTarget: DefaultTexturePlatform
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 4
+    buildTarget: iOS
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 4
+    buildTarget: Android
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 4
+    buildTarget: Standalone
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 4
+    buildTarget: WebGL
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  - serializedVersion: 4
+    buildTarget: WindowsStoreApps
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    ignorePlatformSupport: 0
+    androidETC2FallbackOverride: 0
+    forceMaximumCompressionQuality_BC6H_BC7: 0
+  spriteSheet:
+    serializedVersion: 2
+    sprites:
+    - serializedVersion: 2
+      name: phone_rotate_icon_0
+      rect:
+        serializedVersion: 2
+        x: 0
+        y: 0
+        width: 607
+        height: 783
+      alignment: 0
+      pivot: {x: 0, y: 0}
+      border: {x: 0, y: 0, z: 0, w: 0}
+      customData: 
+      outline: []
+      physicsShape: []
+      tessellationDetail: -1
+      bones: []
+      spriteID: 04ff36e7d75615080800000000000000
+      internalID: -9200460974075412672
+      vertices: []
+      indices: 
+      edges: []
+      weights: []
+    - serializedVersion: 2
+      name: phone_rotate_icon_1
+      rect:
+        serializedVersion: 2
+        x: 86
+        y: 79
+        width: 1069
+        height: 1151
+      alignment: 0
+      pivot: {x: 0, y: 0}
+      border: {x: 0, y: 0, z: 0, w: 0}
+      customData: 
+      outline: []
+      physicsShape: []
+      tessellationDetail: -1
+      bones: []
+      spriteID: f3ed6d66a944bcfd0800000000000000
+      internalID: -2320685753038348737
+      vertices: []
+      indices: 
+      edges: []
+      weights: []
+    - serializedVersion: 2
+      name: phone_rotate_icon_2
+      rect:
+        serializedVersion: 2
+        x: 627
+        y: 526
+        width: 608
+        height: 782
+      alignment: 0
+      pivot: {x: 0, y: 0}
+      border: {x: 0, y: 0, z: 0, w: 0}
+      customData: 
+      outline: []
+      physicsShape: []
+      tessellationDetail: -1
+      bones: []
+      spriteID: 9b3610107bde9d8c0800000000000000
+      internalID: -3973883825926085703
+      vertices: []
+      indices: 
+      edges: []
+      weights: []
+    outline: []
+    customData: 
+    physicsShape: []
+    bones: []
+    spriteID: 
+    internalID: 0
+    vertices: []
+    indices: 
+    edges: []
+    weights: []
+    secondaryTextures: []
+    spriteCustomMetadata:
+      entries: []
+    nameFileIdTable:
+      phone_rotate_icon_0: -9200460974075412672
+      phone_rotate_icon_1: -2320685753038348737
+      phone_rotate_icon_2: -3973883825926085703
+  mipmapLimitGroupName: 
+  pSDRemoveMatte: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: