Changes

A few meta changes and additions (#2244)

* Add Item in Off Hand for `- take`

* Add world context to <player.groups>

* Minor Meta fixes

* Update PlayerTag.java

Oopsies forgot to update this.

* Minor Meta updates & JavaDoc

* Removed redundant spaces

* Remove more redundant spaces.

* Correct identify() for TradeTag

* Added Villager Events

Added:
`on villager acquires trade`
`on villager replenishes trade`
`on villager changes profession`
Referencing https://github.com/DenizenScript/Denizen/issues/1913

* Correct typo on event name.

* Revert "Minor Meta updates & JavaDoc"

This reverts commit d8cfb62f60507081b1bcdec696cf9aa2ccc71d5b.

* Revert "Correct identify() for TradeTag"

This reverts commit dbf69664

* Updates as per request on PR

* Revert "Add Item in Off Hand for `- take`"

This reverts commit 740c34f3

* Uncomplicate the PlayerTag.groups tag

* Fix my stupid

* Lil Fix

* This should fix that

* fix the idiocy again, cause idiot.
 (commit: 8743c78)