Fixed multiple case sensitivity issues
Adds GL ARB check for cubemap arrays for certain cases where the driver only supports the extension, not as core
Fixes undeeded namespace declaration in an inline operator function
Cleaned up/reordered some modules default in the data dir
WIP of Das Boot test map
Begun refactoring visualizer tools
Added default cloud and water textures to core/rendering so water and cloud objects work correctly
Added default Fog_Cube mesh so volumetric fog works correctly
This makes some tweaks to the engine to support this, specifically, it tweaks the hardcoded shaderpaths to defer to a pref variable, so none of the shader paths are hardcoded.
Also tweaks how post effects read in texture files, removing a bizzare filepath interpretation choice, where if the file path didn't start with "/" it forcefully appended the script's file path. This made it impossible to have images not in the same dir as the script file defining the post effect.
This was changed and the existing template's post effects tweaked for now to just add "./" to those few paths impacted, as well as the perf vars to support the non-hardcoded shader paths in the engine.
