Playstation build toolchain

In order to start building a Playstation version of REDRIVER2 you'll need to perform following steps:

Put mipsel-unknown-elf toolchain to this folder (https://github.com/majenkotech/mipsel-unknown-elf/releases)
Install make
Obtain Psy-Q SDK converted for latest GCC
Copy (https://github.com/pcsx-redux/nugget/tree/main/common) to /PSXToolchain/PsyQ/common
Execute psx_build.bat
Install mkpsxiso
Execute psx_makecd.bat
Locate and use CDSrc/REDRIVER2.bin and cue files