Update: console code and some macros

Update: console code and some macros

Add explicit dark mode console option.
Add support for order of operations priority on parameters  ("+n +l +d" would result in colors for dark background because +d overrides both +n and +l due to being the right-most parameter).
Rewrite level_3 programs to utilize the new fll_program_process_parameters() helper function.
Fix some screwed up macro definitions and uses.