Compendium-based Actions

[twiceineverymoment]

Create an Actions tab for the Item sheet which stores action data from within an item and displays it contextually in the owning actor sheet's Actions tab.

Update the data model and compendium from CASPER to include action data inside feats and wearable/equippable items.

[twiceineverymoment]

Infrastructure for this is done but more data entry of the actions themselves will be needed.