figure out how to organize vertex buffers/sb/solvers
SoftBody constructor/descrutor implemented.

Tabs => spaces
vertexbuff: added desctruction of gl buffers
mesh definition added. extra vertex buffers defined.
Imported shader wrapper
engine common headers moved to include dir. GL renamed to renderer and moved up.
renderer imported
header with log definitions added to renderer
tab => 4 spaces
Project reorganized.
Demos moved to separate folder
Renderer test added.
common.h is now shared
Warning is now more descriptive
Shader bug fixed.