FULLPIPE: Implement StaticANIObject::startMQIfIdle()
FULLPIPE: Implement BallChain::removeBall()
AVALANCHE: Rename _seeScroll to _runAnimations and swap it's meaning.
AVALANCHE: Unify kProcGeida and kProcSpludwick under kProcFollowAvvy.

Also rename connected function geidaProcs() to follow() and update it's comments.
AVALANCHE: Remove unnecessary TODOs.
AVALANCHE: Merge ghostDrawGhost and ghostDrawGlerk.
Merge https://github.com/scummvm/scummvm