Feature request: Player tokens

[rsteel1]

I noticed you've started working on this again - I would love to see the addition of player tokens in the Paint tool, to make it more of a virtual game board.

DM would have the ability to add tokens for players and monsters, with editable text labels.

In future, could lead to the addition of a grid tool to allow the DM to place a grid over the map, so that tokens can be snapped to the grid with a settable scale.