[Feature] support idiom for icon (#39)

* Added convenient extension method to XcodeExport module

* Make `icons` command to support device idiom

* Removed individualScales

* Updated parseNameAndIdiom param

* Added `dark` to FileContents initializers

* Removed singleScale case and updated ImagePack type to struct

* Added scale to FileContents initializers

* Update variables naming

* Added Scale enum case for fixing export result for svg assets

* Added test method for exporting iOS images

* Update export method and clean up code

* Updated XcodeIconsExporter and test cases

* Added missing @ symbol

* Fixed AssetPair export issue

* Updated Example app figma-export naming regular expression to support idiom

* Moved properties out of flatMap

* Updated iOS example assets

* Simplify create TemplateProperties

Author: yyjim

Examples/Example/UIComponents/Resource/Assets.xcassets/Icons/ic24Profile.imageset/Contents.json

@@ -0,0 +1,19 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "ic24Profile.pdf"
+    },
+    {
+      "idiom" : "ipad",
+      "filename" : "ic24Profile~ipad.pdf"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  },
+  "properties" : {
+    "template-rendering-intent" : "template"
+  }
+}

Examples/Example/UIComponents/Resource/Assets.xcassets/Icons/ic24Profile.imageset/ic24Profile.pdf

@@ -1,56 +1,88 @@
 {
   "images" : [
     {
-      "filename" : "[email protected]",
       "idiom" : "universal",
-      "scale" : "3x"
+      "scale" : "1x",
+      "filename" : "[email protected]"
     },
     {
-      "filename" : "[email protected]",
       "idiom" : "universal",
-      "scale" : "1x"
+      "scale" : "2x",
+      "filename" : "[email protected]"
     },
     {
-      "filename" : "[email protected]",
       "idiom" : "universal",
-      "scale" : "2x"
+      "scale" : "3x",
+      "filename" : "[email protected]"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "filename" : "[email protected]"
     },
     {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "filename" : "[email protected]"
+    },
+    {
+      "idiom" : "ipad",
       "appearances" : [
         {
           "appearance" : "luminosity",
           "value" : "dark"
         }
       ],
-      "filename" : "[email protected]",
-      "idiom" : "universal",
+      "filename" : "[email protected]",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "ipad",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "filename" : "[email protected]",
       "scale" : "2x"
     },
     {
+      "idiom" : "universal",
       "appearances" : [
         {
           "appearance" : "luminosity",
           "value" : "dark"
         }
       ],
       "filename" : "[email protected]",
-      "idiom" : "universal",
       "scale" : "1x"
     },
     {
+      "idiom" : "universal",
       "appearances" : [
         {
           "appearance" : "luminosity",
           "value" : "dark"
         }
       ],
-      "filename" : "[email protected]",
+      "filename" : "[email protected]",
+      "scale" : "2x"
+    },
+    {
       "idiom" : "universal",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "filename" : "[email protected]",
       "scale" : "3x"
     }
   ],
   "info" : {
-    "author" : "xcode",
-    "version" : 1
+    "version" : 1,
+    "author" : "xcode"
   }
 }

Examples/Example/UIComponents/Resource/Assets.xcassets/Icons/ic24Profile.imageset/ic24Profile~ipad.pdf

@@ -1,56 +1,88 @@
 {
   "images" : [
     {
-      "filename" : "[email protected]",
       "idiom" : "universal",
-      "scale" : "3x"
+      "scale" : "1x",
+      "filename" : "[email protected]"
     },
     {
-      "filename" : "[email protected]",
       "idiom" : "universal",
-      "scale" : "1x"
+      "scale" : "2x",
+      "filename" : "[email protected]"
     },
     {
-      "filename" : "[email protected]",
       "idiom" : "universal",
-      "scale" : "2x"
+      "scale" : "3x",
+      "filename" : "[email protected]"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "filename" : "[email protected]"
     },
     {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "filename" : "[email protected]"
+    },
+    {
+      "idiom" : "ipad",
       "appearances" : [
         {
           "appearance" : "luminosity",
           "value" : "dark"
         }
       ],
-      "filename" : "[email protected]",
-      "idiom" : "universal",
-      "scale" : "3x"
+      "filename" : "[email protected]",
+      "scale" : "1x"
     },
     {
+      "idiom" : "ipad",
       "appearances" : [
         {
           "appearance" : "luminosity",
           "value" : "dark"
         }
       ],
-      "filename" : "[email protected]",
-      "idiom" : "universal",
+      "filename" : "[email protected]",
       "scale" : "2x"
     },
     {
+      "idiom" : "universal",
       "appearances" : [
         {
           "appearance" : "luminosity",
           "value" : "dark"
         }
       ],
       "filename" : "[email protected]",
-      "idiom" : "universal",
       "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "filename" : "[email protected]",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "filename" : "[email protected]",
+      "scale" : "3x"
     }
   ],
   "info" : {
-    "author" : "xcode",
-    "version" : 1
+    "version" : 1,
+    "author" : "xcode"
   }
 }