Per spycrab’s request

Whoops, didn’t catch these

New colour! Includes debug icons and @4x versions as well

Adds the new debug icon set and @4x versions of existing files

This adds new themed rating stars to all of the theme folders, with the
intent to eventually replace the awful old ratings stars in
sys/resources. I’m not a coder so it will be up to someone else to use
these files to replace the ratings stars in WX and Qt. Their dimensions
are the same as the old ones, so it should be pretty easy to implement,
though it will require moving over to theme-able files and supporting
HiDPI for them.

@4x files are present for future proofing / possible android usage.

All files have been optimized with opti-png.

Removes the Boomy theme because it doesn't fit Dolphin well.
This doesn't affect the Boomy-based debugger icons in Resources.