Overhaul inline colors system to properly support additive text and further expansion
Add two new colors - Gray and Blank, the latter being used for IC parsing.
Instead of adding text symbol by symbol, reveal more of the already-rendered text instead so that it properly anticipates words that need to be on the newline.
Changed the append_ic function slightly so it appends ": " to text only after it's no longer needed.
Made gray color less inconsistent with everything else
Rewrite Goofball's doScreenshake() function to be much more modular and multi-purpose (also rename to do_screenshake() to match other functions)
Add networking needed to make screenshake work. Works with AOV version of tsuserver3 (button screenshake only so far).
Add get_theme_pos helper function, currently unused.
