LOOM: Audio sync hack
This patch is a hack, so it should probably not be applied right away.
The Loom audio sync is still a bit off in places. In most cases I believe that's also true with the original interpreter, but there is at least one cases the sync depends on the game using the correct text speed: the conversation between Chaos and Mandible. With the original interpreter, her line "For this you shall be rewarded" appears right on cue. With ScummVM, it appears much too early.
Changing _defaultTalkDelay to 100 and _vars[VAR_CHARINC] to 5 fixes that. Question is, do we want to enforce these values or do we want to just make them the default and still allow the user to change them? Either way would be easy to do. This patch does the former simply because it makes it so much easier to test the timing with older savegames.
Ticket imported from: #625079. Ticket imported from: patches/201.