Removes trailing whitespace from goal_src files, eventually the
formatter will do this as well but it's not ready yet so this is a
decent interim solution.
A competent text editor will also do this / flag it for you.
Currently only tracks enemy kills, and how they were killed. There is
currently no menu for this, but I've already added most of the text for
it. Also did a bunch of misc decompilation fixes and renamed some
methods.
Fixes#3277Fixes#3278