fix crash because of typo in c17 sequences

closes #3723
added support for nuke launch sound to confirm strike

separated into IncomingSound = "nuke approaching/detected"
and changed LaunchSound into "nuke lauched"

also nuke with small L .aud in cnc rules looks like a typo
split nuke announcements based on ally (and observer) / enemy

instead of me / everyone else
added "enemy planes approaching" EVA notification from demo.mix
play launch / incoming sounds in air strike power, too
sonar pulse and para bombs icon to sequence transition

fixes #3720
fixed bit rotting regarding icon sequences and body orientation
get the ActorInfo from current item not first or default

fixes #3718