Allow realization flashes to be animated images by making them AOMovies
Eploit the newly added 'duration' system for realization AOMovie
(cherry picked from commit bb98f79083)
Make the witness testimony use AOMovie instead of AOImage
Remove pointless "testimony_in_progress" variable
CONTROVERSIAL: Make the witness testimony indicator be position-ignorant so as to reduce the amount of hardcoding and allow broader usage of the witness testimony system (For example, Danganronpa investigation indicator, etc.) - This should not affect how the testimony indicator is received currently, as witness testimony usually requires the entire rest of the court to shut up until the cross-examination either way.
(cherry picked from commit 932f430b68)
