Sign Manager - v1.0.6

Admin and player UI for saving/recalling/deleting sign drawings. Gives players a 25 capacity image library so they can save, and restore, their artwork. Saved images exist even after the signs they're on are destroyed. Multi-layer support for animated signs allows save from and restore to each layer separately. Admin can view a 25 image history for any sign, with the SteamID of the painter shown. Clicking a SteamID shows a 25 image history for that player. UI delete allows for very easy moderati...