[decompiler] clean up offline test program, reorganize decomp order

[water111]

Still a work in progress, but offline-test2 is working, at least on linux. If it works on windows, I'm hoping to just get rid of the original. The new version:

• uses the new order of passes for less RAM usage
• prints the file name, so you know where it crashes (and prints it just once)
• colored diffs without the crap in front
• json config file (config.json in the same file)

Still to-do before merge

• compile
• exclude list for states (Vaser has this in a PR already, I just need to make sure the input's easily available for that)
• verify that the normal decompiler still works
• fix crash bugs and remove stuff from banned_objects

[xTVaser]

Old system (debug):

• 7.5minutes before it even starts comparing files!
• over 18GB of RAM used total!
• around 13minutes to do the full suite.

New system (debug):

• way better output
• still works
• around 1GB of RAM
• Starts comparing files immediately
• total time is within the same ballpark

I imagine if we really cared, since we are doing file-by-file we could likely thread this?