* Allow SRAMManager to save to/load from a buffer.
* Don't delete what doesn't exist. Don't create a thread that will do absolutely nothing.
* Update SRAMManager's SecondaryBuffer when loading a savestate.
* Offload NDS SRAM writing to separate thread, debounce writes to two seconds after last flush or DeInit.
* Fixed printf messages.
* Fixes after CR.
* Fixed potential portability issue with time_t
