Import all glew 1.10.0 sources.
Include OpenGL Extension headers.

NOTE: These are technically required since there is no guarantee
that the header files are up to date on the system
Import GLFW version 3.0.3
remove glfw-2.7.7
Added CMake file for GLEW v1.1.0
cmake: update build dependencies.
external/glf: update to support GLFW 3.

Use the Latest GLFW releases. These support
built in cmake that will allow an easier
static build.
samples/gl-430: Fix samples compilation.
cmake: add minor packaging support.
cmake: Automatically update khronos headers.

It's too much to expect everyone to have up to date headers
however it should be feasable to expect people to have
internet access.
Updated atomic counter sample
Merge branch 'master' of https://github.com/kphillisjr/ogl-samples into 4.4.0
Updated to GLM 0.9.5.B
Updated readme for 4.4.0.2 release