Add iOS app icon for Imageviewer (#2977)

examples/imageviewer/iosApp/iosApp.xcodeproj/project.pbxproj

@@ -7,6 +7,8 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		058557BB273AAA24004C7B11 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 058557BA273AAA24004C7B11 /* Assets.xcassets */; };
+		058557D9273AAEEB004C7B11 /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 058557D8273AAEEB004C7B11 /* Preview Assets.xcassets */; };
 		2152FB042600AC8F00CF470E /* iOSApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = 2152FB032600AC8F00CF470E /* iOSApp.swift */; };
 		7555FF83242A565900829871 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7555FF82242A565900829871 /* ContentView.swift */; };
 		CFDB58B53BB94DE262B13C24 /* Pods_iosApp.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 6B1049432C0C2B312090ABF6 /* Pods_iosApp.framework */; };
@@ -161,6 +163,8 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				058557D9273AAEEB004C7B11 /* Preview Assets.xcassets in Resources */,
+				058557BB273AAA24004C7B11 /* Assets.xcassets in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

examples/imageviewer/iosApp/iosApp/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,94 +1,10 @@
 {
   "images" : [
     {
-      "idiom" : "iphone",
+      "filename" : "ic_imageviewer.png",
-      "scale" : "2x",
+      "idiom" : "universal",
-      "size" : "20x20"
+      "platform" : "ios",
-    },
+      "size" : "192x192"
-    {
-      "idiom" : "iphone",
-      "scale" : "3x",
-      "size" : "20x20"
-    },
-    {
-      "idiom" : "iphone",
-      "scale" : "2x",
-      "size" : "29x29"
-    },
-    {
-      "idiom" : "iphone",
-      "scale" : "3x",
-      "size" : "29x29"
-    },
-    {
-      "idiom" : "iphone",
-      "scale" : "2x",
-      "size" : "40x40"
-    },
-    {
-      "idiom" : "iphone",
-      "scale" : "3x",
-      "size" : "40x40"
-    },
-    {
-      "idiom" : "iphone",
-      "scale" : "2x",
-      "size" : "60x60"
-    },
-    {
-      "idiom" : "iphone",
-      "scale" : "3x",
-      "size" : "60x60"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "1x",
-      "size" : "20x20"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "2x",
-      "size" : "20x20"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "1x",
-      "size" : "29x29"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "2x",
-      "size" : "29x29"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "1x",
-      "size" : "40x40"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "2x",
-      "size" : "40x40"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "1x",
-      "size" : "76x76"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "2x",
-      "size" : "76x76"
-    },
-    {
-      "idiom" : "ipad",
-      "scale" : "2x",
-      "size" : "83.5x83.5"
-    },
-    {
-      "idiom" : "ios-marketing",
-      "scale" : "1x",
-      "size" : "1024x1024"
     }
   ],
   "info" : {