AGS: MMM28 - hangs at intro

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Maniac Mansion Mania 28

​https://www.maniac-mansion-mania.com/index.php/de/spiele/episoden/staffel-3/46-episode-28-time-machine-2.html

(tested with build windows-x86-64-master-bde92c14, 1-Jun-2021, on Windows 10)

During introduction, a couple of scene plays ok, then game hangs when BTF music plays and the car arrives on the street in front of the house, with music still playing.

Skipping with [ESC] still hangs the game on the same room (street) but before the car arrival.

(Pause and Load/Save shortcuts do work)

Note: could be related to unimplemented "MYMIDI::get_length_ms" function.

"WARNING: TODO: MYMIDI::get_length_ms!"

is repeated in ScummVM status window

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Screenshot

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ScummVM log in status window

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Save when the game is hanging