Initial Release 0.2.0

First release! I'm calling this version 0.2.0 because I already posted a version without the screen filter editor on GBATemp.
Note that this is Windows-only right now but should work in Wine, and requires 64 bit since it uses makerom.

The release zip contains everything you need to use it: the main exe and the 3 external exes in progfiles. Refer to the included readme, also visible on the main project page, for instructions.