Begin using buildIcons.nix for creating res/

Author: augyg

android/AndroidManifest.xml.nix

@@ -18,7 +18,7 @@ in ''
       android:versionCode="${version.code}"
       android:versionName="${version.name}">
     <application android:label="@string/app_name"
-                 android:icon="${iconPath}"
+                 android:icon="@drawable/ic_launcher"
                  android:allowBackup="${boolStr allowBackup}"
                  android:fullBackupContent="${boolStr fullBackupContent}"
                  android:hardwareAccelerated="true"

android/impl.nix

@@ -139,7 +139,7 @@ in {
             }
         '') abiVersions) + ''
           rsync -r --chmod=+w "${assets}"/ "$out/assets/"
-          rsync -r --chmod=+w "${resources}"/ "$out/res/"
+          rsync -r --chmod=+w "${nixpkgs.callPackage ./buildIcons.nix {} { src = iconPath; }}"/ "$out/res/"
           [ -d "$out/assets" ]
           [ -d "$out/res" ]
         '');