PyPack has hardcoded assumptions about Python 2.2 & 2.3

[dpogue]

When PyPack extracts files from a .pak, it needs to add the Python version magic to each file. It has an enum of supported Python versions:

libhsplasma/Tools/src/PyPack.cpp

Lines 44 to 48 in 0cb4c8a

	enum PycHeader
	{
	kPyc22 = 0x0A0DED2D,
	kPyc23 = 0x0A0DF23B,
	};

It makes the decision about whether to use the 2.2 version number or the 2.3 version number based on the encryption type used by the .pak file:

libhsplasma/Tools/src/PyPack.cpp

Lines 328 to 329 in 0cb4c8a

	S.writeInt((eType == plEncryptedStream::kEncXtea || eType == plEncryptedStream::kEncNone)
	? kPyc22 : kPyc23);

This will fail to use the right Python magic code for H'uru MOULa clients that use Python 3.10 or 3.12 (and historically 2.7).

Since there's nothing in the pak file to indicate the Python version, maybe the best choice is to add an option to specify a Python version and fall back to the existing logic if the option is unspecified?