Add Competition Information for Placing

[christianvozar]

For pieces allow specifying competition entered (could be 1+n) and their placement. For 1st, 2nd, 3rd perhaps a small ansi icon of a medal in gold, platinum and bronze could be shown next to it.

As an aside I volunteer to input this information from all ansi competitions I can find out on demo zoo.org, etc.

This would lead to a possible feature request of a new top-level object next to artist and group where you'd have competition. I'm thinking something like 16colo.rs/compo/layerone/2018 and it would display the pieces tied to that competition.