package(games): QuakeSpasm, a Quake 1 source port

See merge request !404

QuakeSpasm is a simple source port that primarily focuses on bug fixes
and backwards compatibility.

Its build system is a small Makefile which required a few patches in
order to compile on Redox. Currently, it compiles with both SDL1 and
SDL2. MP3 support is hard disabled since neither `libmad` nor `mpg123`
would compile. However, the default OGG container and Vorbis decoder
compiles fine.

Like Doom, Quake requires commercial assets or free replications in
order to run. I'm currently trying to write a small recipe for the
shareware files, but ironically that has more blockers than the source
port itself.

Beyond the lack of content, I think this port is good to go.

Bump dependencies

See merge request !406

RISC-V target support

See merge request !405

Fix luajit

See merge request !403

Compiles and luajit executable passes tests found at
https://github.com/LuaJIT/LuaJIT-test-cleanup (excluding some that
appear to be related to the static build).

Compiled without W^X memory permission support because there appears to
be some issue with the mprotect() call.

rvvm: Add RVVM recipe

See merge request !402

bootloader: get rid of source copying, build directly from the source instead

See merge request !401