* Use #include "..." rather than #include <...>
* Remove unused dolphin headers
* Go through dolphin/base.h
* Remove __cplusplus guards
* Go through dolphin/gx.h
* Move dolphin OS headers to subdirectory
* Go through dolphin/os.h
* Go through the rest of dolphin headers
* Split out si.h
* Split up hw_regs.h
* Change #include <> to #include "" in debug info
* Create dolphin/thp.h
* Go through variables.h
* Create dolphin.h