ZENGINE: Create RenderManager class and move code from image.cpp
ZENGINE: Convert old code to use RenderManager
ZENGINE: Remove extraneous file
ZENGINE: Fix memory leaks
ZENGINE: Create member function for creating a panorama look up table
ZENGINE: Create a class for handling all render table logic

Aka, creating the lookup tables, storing the current render state, and eventually doing
the image mutations.
ZENGINE: Move rendering logic from ZEngine class to RenderManager class
ZENGINE: Convert error() to warning()

I did not realize the intended behavior of error() is to close the application
ZENGINE: Convert console code to use RenderManager and add method for setRenderState
ZENGINE: Remove supurflouous 'const' and add 'inline'
ZENGINE: Remove variable used for debugging purposes
ZENGINE: Fix unsigned/signed compiler warning
ZENGINE: Force all files to be registered with SearchMan as 'flat'

There are 10 file name conflicts as a result, but the conflicts are byte identical.