Written by Themaister.

The code is heavily reliant on MarathonMan's CEN64 RSP implementation, as well as Ares and CXD4's RSP implementations.

MIPS core: Rewritten from scratch
CP0: Near copy-pasta from CEN64, with some fixes from Ares brought in
CP2: Near copy-pasta from CEN64
LS pipe: Ported from Ares
Mupen64plus glue code: Reused most of CXD4.
Lightning jitter interface: Written from scratch

The plugin's focus is to support dynamic recompilation for performance,
instead of being pure interpreters as CEN64 and CXD4's implementations are.
