compiling posScale into vertexLoader
vertex loader frac correction on vertex shader
don't convert positions to floats
Merge branch 'master' into vertex_loader_improvements
don't add frac for floats

It's still done on gpu, but vertex format don't need to define zeros
convert macros to teplates
rename NativeVertexFormat.h into SWNativeVertexFormat.h

VideoSoftware's NativeVertexFormat.h conflicts with VideoCommon one
uses structs for vertex attributes
build fix

revert kdevelop voodoo
readd sse position loader

I don't see performance increase, but as api match again, it can be used without touching
implement frac calculation on cpu
compile fix
fix some warnings
Eliminated redudancy of Pos_ReadDirect and Pos_ReadIndex as requested. It took a bit of boilerplate but maybe this "reader" class can be used in the other "loaders".
forceinline DataReader()