Closes#1496
This brings back the SCE splash screens. Also adds a runtime flag
`-nosplash` to skip it. Right now, it's on by default, but open to
changes on that (maybe always disable in debug to speed up start times,
etc.).
Where applicable, of course.
My system language is set to English so I actually can't test this. If
anyone has their Windows language (NOT LOCALE) set to Spanish, German,
French, Italian or Japanese please test this.
Fixes#1734
Also fixes the opengoal debugger on Windows and fixes the decomp for
`menu` which was causing some crashes related to input handling.