Laying the groundwork for Niflib to be able to work on systems with different endian types.  All Read/Write functions now take NifInfo structures which are based by const reference.  These are also passed into the NifStream functions so they will have access to the requested endian type of the NIF as well.  Also added endian detection and swapping functions.

Moved TypeConst function implementation out of header file. Hopefully should fix GCC visibility issue.
Fixed GetIDString virtual function missmatch that was causing the name not to show up when the function was called from a NiObjectRef.
Added Python-specific operator functions to Ref to prevent the wrapper from crashing on Null Refs.

To allow for DLL mode, the IDENTITY constants in the Matrix classes were made private and are now accessible through the Identity() function of each matrix class.  This may affect the 3ds Max plug-in as well.

Fixed Niflib DLL compile.  All public functions should now be marked with either NIFLIB_API or NIFLIB_HIDDEN.  May have missed a few here or there but they should be noticed eventually.

ComplexShape::Split now cuts out weights below 0.1 and normalizes the result.
Fixed a bug which could cause NiSkinInstance to try to call a function on a NiNode that was in the midst of destruction.
Removed some cout statements.

Fixed the relative include paths and tried to update solution, but havn't got the precompiled header working right.

Renamed CreateBlock to CreateObject and made it clear that it is not necessary for the user to call this function unless s/he is working through Python.
Removed BlocksInMemory function.  Call NiObject::NumObjectsInMemory instead.
Removed CreateBlock template since new keyword can be used.
Implemented GetScale and SetScale functions of bhkNiTriStripsShape to fix linker errors when compiling Python wrapper.

Finished Skin API except for NiSkinPartition.  Part of this was making NiSkinData read-only with a new interface.
Fixed a bug in the SubtractRef function.

Commented out functions written by Amorilia that I need to figure out how to fix.

Major update to python generation scripts and others.  Currently just namepace and mutable size members with appropriate generated code.

Noticed that I had forgot to include NiObject.cpp in my last commit... unfortunately I've already started splitting off classes into their own files so that's included in this commit as well.
I also noticed that I never implemented the member functions of Ref!  I still haven't, but I was just surprised it's been compiling without complaint.