Lua Branch - Compiled for 5.0.x

Thanks to @kgsws, we can now select the desired *.wad when launching kgdoom.

Compiled for 5.0.x

Place kgdoom.nro, kgdoom.wad and any of the below Doom wads in the directory: /sd/switch/kgdoom/.

Doom - doom.wad
Ultimate Doom - doomu.wad
TNT - tnt.wad
Plutonia - plutonia.wad
Doom 2 - doom2.wad
Freedoom - freedoom.wad
Freedoom 2 - freedoom2.wad
Doom (Shareware) - doom1.wad