Also moved all the code for each pipeline into the header files
rather than the .cpp files to keep it all in one place.
Considering just moving all the code into one file just to make it
easier to create new pipelines but that may be overkill and may
make the project harder to maintain in the future.
Changing the mechanic of the renderer to support pipelines.
One scene could have multiple pipelines. The pipelines allow for
one shader, one camera, and multiple batches.
