Changes

`block equips <item>` (#2595)

* `<block> equips <item> (on <entity>)` event

* Add example

* Replace `on <entity>` with switch `on:<entity>`

* Change event line to not conflict with other events

* Remove `block` context, uncache `item`, and add determination

* Add example

* Add determination prefix

* Update meta

* Fix up some phrasing

i can't speak english :skull:
 (commit: 83951fb)