Revert "Replace old object loading routine with the packfile based one"

This reverts commit cd6c2613a576592feebd1f9f530cf0e4c1fa539e.

Conflicts:
	lib/gihp/IO/File.php
Revert "Adding packfile support classes, based off @patrickf's glip library"

This reverts commit 1d147703cf168093815ee9eb2b1e20c61a3d07d1.

Conflicts:
	lib/gihp/IO/File/Packfile.php
	lib/gihp/IO/File/Packfile1.php
	lib/gihp/IO/File/Packfile2.php
Separate @patrikf's modified glip code

glip is licensed under GPL-2.0 and is not compatible with the MIT license.
It is impossible to include GPL'ed code in code under other licenses.
The user must install vierbergenlars/gihp-packfile separately if he wants to.
Merge branch 'master' of github.com:vierbergenlars/gihp