[SAVEVERSION+] VM struct changes.
- Serial/title is now linked to disc, instead of running ELF.
- Save states can be created during BIOS boot.
- Patches now apply based on the executing CRC, and only after the
entry point starts executing (fixes multi-game discs).
- Add "Fast Forward Boot" option.
- Split achievements download and activation, downloads occur on
initialization, but are not activated until after the ELF loads.
- Prevent HostFS access while in PS1 mode.
- Remove multiple sources of truth for ELF/CRC/etc.
- Move ELF state from global scope to VMManager.
- Prevent game fixes and hw fixes being active while booting game.
- Simplify game update.
- Flush recompilers after ELF loads. No point keeping boot code around
which gets overwritten.
Move files from Frontend directory to pcsx2 and/or subdirectories.
Get rid of double GS init.
Combine HostSettings and Host.
Combine Frontend/Achievements.h and Achievements.h.
Guest memory is now mapped into a shared memory/file mapping, for use
with fastmem.
64-bit and 128-bit arguments are passed by register/value instead of by
reference/address.
LDL/LDR/SDL/SDR now use 64-bit GPRs instead of SSE.
