Added demo and backup makefiles

PHYS-24 #time 30m
Removed a bunch of superflueous makefiles
Made simpler makefile in root.

PHYS-24 #time 3h #comment Still need to work out some kinks. Right now the .d and .o files are being created in the true src directory because I'm having issues getting an object to point to its corresponding source files otherwise.
Deleted a bunch of old files.

PHYS-24 #time 25m #comment Might regret doing this because I won't have old examples to use, but I think at this point I've successfully emulated the old behavior (Aside from the target directories for output files) so I'll mainly be focused on simplifying the new approach.
Trying to simplify further by looping directories

PHYS-24 #time 15m