Feature Request: Built In BSPSrc version

[dk865]

A built-in BSP decompiler would make converting BSP files to VMF much more convenient by keeping everything in one place.

I recently ran into a GitHub merge issue that added commit details to my map file, corrupting it by merging two versions together. Since I couldn't tell them apart, I had to reinstall BSPSrc and decompile the map to recover the correct VMF.