Class Flags for Initiative Tracker

Remixed some initiative flags using the nice class vectors from [morepurplemorebetter](https://old.reddit.com/r/DnD/comments/4t57fn/dd_5e_vector_icons/). This will fit into our campaign well with some class pawns created from my [D&D Grid and Pawn System](https://www.thingiverse.com/thing:3405948).

The stand is available to download here: https://www.thingiverse.com/thing:2868068