Indigo Demo Update

Hello!

Some changes have been made to the demo for Indigo. In addition to the original cemetery level, there is now another playable level as well. I've also added an inventory system, and a menu to choose between the two levels. Other small adjustments include: changing the speed of the player, changing the narrative, and changing some of the sound design.

This particular upload most likely still has some bugs which need to be fixed, and definitely still has details to be worked out. I'll be updating the demo again soon enough.