Minor formatting fix in console test app
Refactoring of opengl renderer, use TPL with a custom TaskScheduler (for a single thread with its own opengl context)
Minor cleanup
Add BackgroundColor property in IImageCandidate and make renderers use it
Some cleanup of opengl renderer
Fix bug in opengl renderer.
Index buffer was not properly added/bound through the vertex array
Minor cleanup
Add new project, ImageEvolver.UnitTests.Renderers with a unit test for some simple rendering of polygons
Improvement to opengl renderer; render all polygons/features with a one vbo, instead of a vbo per polygon (one draw call instead of X)
Also adds per-vertex coloring through a simple technique/shader
Minor fix