Fix and optimize sys_ppu_thread_yield
Fix LV2 syscalls with timeout bug. (use ppu_thread::cancel_sleep instead)
Move timeout notification out of mutex scope
Allow g_waiting timeouts to be awaked in scope
Hitherto the statistics have been exclusively thread-specific.
Other improvements:
* Fixed container management so a collision of a new element with an older element of the record will become impossible.
* Added thread name to thread-specific information printing.
* Fixed condition to abort SPU block statistics collection, now matches SPU LLVM Profiler's.
* Fix possible division by 0 by checking `samples`.
* Update asmjit dependency (aarch64 branch)
* Disable USE_DISCORD_RPC by default
* Dump some JIT objects in rpcs3 cache dir
* Add SIGILL handler for all platforms
* Fix resetting zeroing denormals in thread pool
* Refactor most v128:: utils into global gv_** functions
* Refactor PPU interpreter (incomplete), remove "precise"
* - Instruction specializations with multiple accuracy flags
* - Adjust calling convention for speed
* - Removed precise/fast setting, replaced with static
* - Started refactoring interpreters for building at runtime JIT
* (I got tired of poor compiler optimizations)
* - Expose some accuracy settings (SAT, NJ, VNAN, FPCC)
* - Add exec_bytes PPU thread variable (akin to cycle count)
* PPU LLVM: fix VCTUXS+VCTSXS instruction NaN results
* SPU interpreter: remove "precise" for now (extremely non-portable)
* - As with PPU, settings changed to static/dynamic for interpreters.
* - Precise options will be implemented later
* Fix termination after fatal error dialog
* Use atomic waitables instead instead of global thread wait as often as possible.
* Add ::is_stopped() and and ::is_paued() which can be used in atomic loops and with atomic wait. (constexpr cpu flags test functions)
* Fix notification bug of sys_spu_thread_group_exit/terminate. (old bug, enhanced by #9117)
* Function time statistics at Emu.Stop() restored. (instead of current "X syscall failed with 0x00000000 : 0")
* Allow to load OVL alone.
* Add error checks in ppu_load_exec(), do not crash on error.
* Fix crash on exit from standalone PRX mode, allow kernel explorer to work with it as well for the added OVL mode.
