Grant Paul f7dc2741e2 Support compiling app icon sets. (#94)
* Pass through info and dependency info options to asset compile output.

Fixes writing out additional info plist and dependency info.

* Add initial implementation of compiling app icons.

Supports copying the images and writing the icon metadata to info
plist additions. Current implementation has two limitations:

 - All idioms are copied for all target platforms. For example, watch
   images are copied for asset compilation targeting a phone.
 - The size of images is not verified against the specified dimensions.
2016-07-21 15:17:16 -07:00
..