General cleanup, Improve hdtv1080 patch, add nastys's ExPatch

[ActualMandM]

General cleanup includes:

• Removal of mod720p, the game launches in hdtv720 by default.
• Strings that were modified for removing stuff are now just using the null termination byte.
• Fixing up credits to be consistent between files.

Patch updates include:

• A simplified version of the hdtv1080 patch, now modifying where the value is initially set.
• A port of nastys's ExPatch to Mega Mix, unlocking (Extra) Extreme difficulty by default. (also unlocks Hard for Mix Mode)
  • Variable originally found by Stewie10

[ActualMandM]

I don't have an executable for JP 1.0.8 or any of the EN versions, but you can easily get the address for the hdtv1080 patch with these array of bytes:
A8 01 80 52 28 24 00 B9 48 00 80 D2 08 20 E0 F2

For ExPatch, the following array of bytes will drop you a little bit below a branch to the function I modified.
A8 02 40 F9 08 51 43 B9 1F 05 00 71 18 17 98 1A 1F 09 00 71 5A 07 00 11 D6 16 96 1A