NaCl VS Add-in hello_world_gles example

NaCl VS Add-in hello_world_gles example



Added an example project using the code from the hello_world_gles SDK example.


BUG=

Committed: https://code.google.com/p/nativeclient-sdk/source/detail?r=1411

[noelallen1, 2012-08-10 20:50:37]

Note:  This is a copy of an existing example which is already in the NaCl repo,
so the C sources do not require review.  The VCPROJ files are generated by
Visual Studio and represent a VS version of the same thing we normally build
with Make.

LGTM