Disable pack200 and Enable MultiMCLauncher dep

I disable pack200 in cmake because it fails to compile.
I also renable MultiMCLauncher dep because resource file requires it.
no unstable stuff. disable it.
Merge branch 'develop' of https://github.com/hyperfang8/MultiMC5 into develop
Fix stuff up some more
Replace lzma with xz. Tweaks to fix debug builds.
Turn pack200 into an actual library
``Working'' forge unpackers. Needs a lot of hardening but good for alpha.
Add tweaks to make things build on windows
Implemented xz and pack200 unpackers required for proper forge installation.

Merge branch 'feature_forge_unpackers' into develop

Conflicts:
	CMakeLists.txt