Correct case on DISABLED_UPDATE cmake variable.

Necessary to work offline.
Add colorScheme to geometry pass.

Reorganized RenderFieldState.h and DataConversions.h to accomodate.
Add render system hook for color mapping.
Add color mapped render system.
Add texture management to color mapped renderer.
Add color map texture component for color mapped geometry.
Activate color map rendering system.
Ensure VBO scalar data is written as a float instead of double.