All the games I've been trying to load from outside RPCS3's bin directory are returning me empty directories
```
{PPU[0x3] Thread (main_thread) [0x011223d8]} class fmt::exception thrown: cellGameBootCheck(): Unknown CATEGORY:
```
This is a hack for when the category is empty or unknown.
We assume it's a disk game and proceed with the emulation.
* Optimizations
1) Some headers simplified for better compilation time
2) Some templates simplified for smaller executable size
3) Eliminate std::future to fix compilation for mingw64
4) PKG installation can be cancelled now
5) cellGame fixes
6) XAudio2 fix for mingw64
7) PPUInterpreter bug fixed (Clang)
* any_pod<> implemented
Aliases: any16, any32, any64
rsx::make_command fixed