TSAGE: Prevent possible null dereferenced in sound player
VOYEUR: Fix some missing variable initializations
TSAGE: Change the type of two variables to boolean
TSAGE: Reduce verbosity in Sound code
TSAGE: Remove useless variable in Voice structure entry Type 0
CINE: Avoid possible string buffer overrun by using strlcpy and strlcat
CINE: Initialize some unitialized variables
VOYEUR: Initialize an unitialized variable
GOB: Remove the last remnants of Draw::_vgaSmallPalette

Draw::_vgaSmallPalette was supposed to be a 16-color VGA
palette / EGA palette, but we've been using the first 16
entries of Draw::_vgaPalette for that for ages now.

The only parts where we didn't were codepaths never
actually taken in the gob games, so for the sake of
clarity (and fixing Coverity issues), this commit removes
those as well.

Fixes Coverity issues 1192648 and 1192649.