PCF parsing improvements

[maxdup]

I have not experienced any bugs, but this will surely cause some.
I've been researching pcf files and had new findings about the format. Figured I'd share to help improve the parsing.

first:
https://github.com/ruarai/CompilePal/blob/master/CompilePalX/Compilers/Utility/ParticleUtils.cs#L282
TypeId is a uInt32 in binaryVersion 5.

second:
https://github.com/ruarai/CompilePal/blob/master/CompilePalX/Compilers/Utility/ParticleUtils.cs#L293
Parsing strings is done differently in binaryVersion 4 and 5,
Version 2-3 are directly a string, 4-5 are an Int id into the StringDict. Version 4 is uInt16, version 5 is uInt32.

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third:
This assumption is wrong. Pcf material strings are never prefixed with "materials/". This bit of code should be changed to always prepend "materials/".
https://github.com/ruarai/CompilePal/blob/master/CompilePalX/Compilers/Utility/ParticleUtils.cs#L58

This would be consistent with this bit of code which always prefixes strings with "materials/"
https://github.com/ruarai/CompilePal/blob/master/CompilePalX/Compilers/Utility/ParticleUtils.cs#L296

likewise, Pcf model strings are never prefixed with "models/". This bit of code should be changed to always prefix strings with "models/"
https://github.com/ruarai/CompilePal/blob/master/CompilePalX/Compilers/Utility/ParticleUtils.cs#L39

(Note: a few model strings in csgo are actually prefixed with "models/", but don't get confused, this correctly refers to "/models/models/")