CB-13191: (ios) Support marketing icon (#337)

Author: DirtyHairy

bin/templates/project/__PROJECT_NAME__/Images.xcassets/AppIcon.appiconset/Contents.json

@@ -120,6 +120,12 @@
       "filename" : "icon-83.5@2x.png",
       "scale" : "2x"
     },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "icon-1024.png",
+      "scale" : "1x"
+    },
     {
       "size" : "24x24",
       "idiom" : "watch",

bin/templates/scripts/cordova/lib/prepare.js

@@ -328,7 +328,8 @@ function mapIconResources (icons, iconsDir) {
         {dest: 'icon-72@2x.png', width: 144, height: 144},
         {dest: 'icon-50.png', width: 50, height: 50},
         {dest: 'icon-50@2x.png', width: 100, height: 100},
-        {dest: 'icon-83.5@2x.png', width: 167, height: 167}
+        {dest: 'icon-83.5@2x.png', width: 167, height: 167},
+        {dest: 'icon-1024.png', width: 1024, height: 1024}
     ];
 
     var pathMap = {};