Fixes #2455

The resulting pointer wasn't written to unless the index was verified as
valid, but that's still UB and triggered debug checks in MSVC.

Reported by garrettboast on IRC

Split up monolithic Regs struct

externals: nihstro, update to latest master. Again.

Use std::array<u8,2> instead of u8[2] to fix MSVC build

IPC helper

Oh No! More shader changes!

Texture decoding cleanups

I changed the macro in microprofileui.h from WIN32 to _WIN32 so that it
would correctly dectect that its being compiled on a windows platform

Core: update Kernel Config Memory to latest version (11.2)

ShaderJIT: add 16 dummy bytes at the bottom of the stack

arm_dynarmic: Coprocessor support

removed the possibly uneeded cast on values.gdbstub_port

removal of the -1 case in the configure_input switch

as far as i could tell this cast is unneeded because [GDBStub::SetServerPort](https://github.com/citra-emu/citra/blob/master/src/core/gdbstub/gdbstub.cpp#L897) takes a u16 and [values.gdbstub_port](https://github.com/citra-emu/citra/blob/master/src/core/settings.h#L116) is already a u16

this case is unneeded because no enumeration value can possibly correspond to it

This allows Phoenix Wright - Dual Destinies to boot.

These are not used any more since we moved shader JIT to xbyak.