* Applying directional brightness profile value, disconnected spec flags and made specular light always equal to diffuse light
* Switched over to new command line arguments
* Wire lab up to new lighting controls, and provide backwards-compatible defaults for emissive.
* cleanup unused new function
* make static some functions that can be static
* revise command-line and emissive handling
* handled specular sun depreciation and general removal of specular value handling
* Removed specular light color as a separate value in the uniform buffers.
* cleanup of leftover/post-rebase specular references
* further post-rebase repair of light flags command line and leftover specular
* move techroom/selection/breifing 'room' lights to a common function and
augment lighting setup for current rendering
* fixed some mishandling of lighting modifiers.
* Addressed code clarity and comments from review
* New configuration table for HDR tonemapping and related data.
* lighting profiles conslidation and cleanup
* Appease CI
* Lighting profiles parser now parses all tonemapping options
* simplified light profile parsing logic further
* Refrences for tonemapping functions added
* cleaned unused function definition
* Extra documentation for lighting tables
* Fixed lighting profile value label error
* Converted current_piecewise_values to const reference
EatThePath