Add variant of unpackVolumeFaces that accepts a char* buffer to avoid additional malloc for input/output

Add variants of unzip_llsd that accept a char* buffer and do not allocate an additional input copy buffer

following promotion of DRTVWR-525

Port MoonWalk feature. Fix #52.

Closes #52

See merge request alchemy/alchemy-next!21

Add support for multiple overlays in the same linkset (and support permanence in @setoverlay restrictions that aren't currently active)

CATZ-590: Unpredictable results occur when both @setsphere and @setoverlay are set by the same object

Allow effect ids to be reused for each visual effect (but enforce uniqueness across all instances of the same effect)

Enable Chrome sandboxing on Linux

See merge request alchemy/alchemy-next!20

Fix typo