New options: -ftypeless-stores and -fsort-operands

These flags reduce entropy, but not size, of the generated assembly
code. This helps compressability of the files.

Additionally, -ftypeless-stores might SLIGHTLY improve engine
performance due to less instructions being used (so branch prediction
might work better). Probably cannot be measured though.

Signed-off-by: Rudolf Polzer <divverent@xonotic.org>
Merge branch 'divVerent/ftypeless-stores' of git://git.xonotic.org/xonotic/gmqcc into cooking
Merge branch 'cooking' of github.com:graphitemaster/gmqcc into cooking
Merge divVerent/ftypeless-stores, but rid of the macro abuse.