Tidy5e Support and Rune Builder v1

This is a pretty hefty overhaul. A fair amount of work has gone into this. A rework to the rune system, new visuals, and the builder itself.

Tidy5e Support

Both sheet types now have support and load the runic slots. Visually it's basically the same as the default 5e sheets, but loads and formats according to the Tidy5e sheets.

Runic Forge

Core runes are reworked to fall in line architecturally with the builder. The builder is now a full-fledged custom builder, attempting to be friendly to use, but also powerful. It isn't a rehash of existing core runes, it includes many features that didn't exist before as well as a lot of knobs to tweak. It still is controlled by similar mechanics like the rarity dice, but everything else has tweaks. Full details are listed in Runic Items Wiki