add current stance to actor dump
fix Marilith animation
add Demogorgon animation support

Not quite complete. I haven't figured out the palettes for this one.
TextArea: redraw more selectively when the current selection changes

Prevents excessive flickering of the clock when MessageContinueWindow
or MessageEndWindow is open.
treat IE_AVATARREMOVAL as being unscheduled instead of just invisible

This fixes cases where two actors share the same location on the map with
one of them having the avatar removed. If the removed actor was found
earlier in the list of actors it would be impossible to talk to or
otherwise interact with the present actor (e.g. IWD AR9101).
make even more sure that unscheduled actors can never be seen
draw background animations before highlightables

Prevents many containers like in BG2 AR0205 or AR3022 from drawing over
the outline.