Sequence manager module for Chataigne. Allows to monitor keys and cues of mapping layers of a sequence. Allow creation of group of keys, one per layer, plus one cue to drive keys position.

eLandon c96e717ba7 fix: check keys only if layer has automation		4 lat temu
SequenceMgr.js	c96e717ba7 fix: check keys only if layer has automation	4 lat temu
module.json	42501e68bd sync base between tl and module cues	4 lat temu
testSequenceMgr.noisette	c96e717ba7 fix: check keys only if layer has automation	4 lat temu