Compression Part 1

A little update with the latest progress of the editor:
The graphics compression routine is already partly working which can be seen in this screenshot:

This screenshot is taken from the ZSNES editor running a ROM which has been edited in the editor.
The game logo has been edited on the editor, the word TEST can be seen in the 'G' letter. The other part of the logo is unfortunatley still erroneous. The game crashes after a game slot is chosen and the actual game should start..
Still need to figure out the error in the compression routine.

Furthermore I did some code refactoring to make everything more clear. The length of the decompressed graphics is now evaluated. Thereby I found 18 more tilesets which were overseen before. So now I think every compressed tileset can now be edited.

There are some uncompressed graphics which I want to display as a next step.

Hope to figure out the compression problem as soon as possible so I can upload the first version of the editor!