Add AppIcon, AccentColor and LaunchScreen assets

Author: marcoroth

RubyEvents/Assets.xcassets/AccentColor.colorset/Contents.json

@@ -1,6 +1,15 @@
 {
   "colors" : [
     {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0.236",
+          "green" : "0.081",
+          "red" : "0.865"
+        }
+      },
       "idiom" : "universal"
     }
   ],

RubyEvents/Assets.xcassets/AppIcon.appiconset/AppIcon.png

@@ -1,6 +1,7 @@
 {
   "images" : [
     {
+      "filename" : "AppIcon.png",
       "idiom" : "universal",
       "platform" : "ios",
       "size" : "1024x1024"

RubyEvents/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "LaunchScreen.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}