SCUMM: FREDDI4: workaround lipsync issues in final scene

[BLooperZ]

This workarounds https://bugs.scummvm.org/ticket/3533

In general, there seems to be some opcodes in the costume scripts that should be skipped by some unknown condition...
The animation frames in the same costume (809) seems to be 2 sequences:

• freddi talks
• luther talks

So the genral flow of this costume is

• when freddi finishes moving her lips, it's luther turns
• when luther finishes moving his lips, voice become disembodied

for now, this is somewhat hacky solution to loop when the sequence ends prematurely by the counting the amount of lines to be said.

NOTE: This bug does not occur in the original interperter, so there should be some other method, that should solve it from the root cause.

[Thunderforge]

Tested locally with all conversation options and it works great!

[sev-]

Thank you.