* Removed version header generation for the GUI application.
* Added a static library function to retrieve the version number.
* Fixed bug that caused the version flag to fail unless the core/filename
were specified.
* Renamed version.h to PlipVersion.h.
* Frontend now selects the texture format based on what the renderer
supports.
* Corrected some file header comments.
* Added a function to retrieve the pixel format from the video
implementation.
* Various cleanup/clang-tidy appeasement.