* sceKernelDebugOutText
Some homebrew use this for logging, and these logs do show up in console klogs.
I wasn't sure where the most suitable place for this function would be, so I made a separate file for these debug functions.
* Implement kernel exit
Some homebrew I have use this exit when an error occurs. Since actually closing the emulator isn't implemented yet, I've used an unreachable message that logs the status code.
I've placed it in process.cpp for now, let me know if I should change that.
* Improved implementations for sceKernelDebugRaiseException functions
These functions take in two parameters, an error code and some other value that I have no idea what is for. If that second parameter is not zero, they return ORBIS_KERNEL_ERROR_EINVAL before any calls to mdbg_service.
These improved implementations add the early error return and a message with the error code to the unreachable.
* Add missing exports
Homebrew apps like to use these kernel exports of posix functions instead.
* Clang
