Output .x file
Merge branch 'develop' into output_x_file
Add scene count prefix to save filename
Output Frame with name
Link with d3dx9.lib
Output x file per scene, instead of per object
Merge branch 'develop' into output_x_file
Merge branch 'develop' into output_x_file
Add ReportMultiplyTransform function
Refactor to use Vec3f
Change naming rule for frames
Add Mesh class
Merge branch 'develop' into output_x_file

Conflicts:
	Main.h
Refactor to use Mesh class
Add MeshDescriptor.h
Modify Mesh class; design change
Add MeshRepository class
Cache meshs using hash
Check mesh duplication by hash of x file content, instead of index buffer description
Write x file if not exists