Add multiple lights; fix tinyobj texcoords

Fix light data alignment issue

Clean up OBJ loading code and view matrix init

Add camera controls and load Sponza

Add Sponza with LFS

WIP

Merge branch 'msaa'

Enable MSAA

Add depth stencil buffer

Add per-model textures

Add a single light to the scene

Use more explicit vertex/normal types

Load normals, load sphere OBJ, shader compile func

Modify OBJ loader to only support triangles

Add OBJ file loader