Update 1 - The post-content update

This update serves to address initial problems found in playtests. A more content rich update will follow later and will significantly change the game.

Project source repository has been made public (see bottom of addon description).

Change notes:

Improved backpack icons.
Made ending path less ambiguous.
Patched cave holes.
Added a temporary hint.
Made hints always show.
Changed a font to something more readable.
Made mailbox flag interactable.
Added and adjusted autosaves.

Created Bivouac.