Drawing Sphere and Grid

Using GLM
Drawing Sphere and Floor
Testing Changes to Draw Array
remove OPENGL CONVENTIONAL TEMPLATE.xcodeproj
Revert "remove OPENGL CONVENTIONAL TEMPLATE.xcodeproj"

This reverts commit 4d9948c305a9101a9b7234db0555e04990d390d9.
Handed to Professor

Finally drawing scene using Vertex Array. But it has a problem if
change the sphere resolution to the next power of 2, i.e. 32. The
current value is 16.
Merge branch 'Assignment-1'
Really Simple Mouse Movement