Implement XP level up and chat message triggering

[sudokoko]

This PR implements two new additional configurable shock triggers, those being XP Level Up and Chat Message Event.

• XP Level Up simply does just as described: initiates a shock when the player gains an experience level.
• Chat Message Event allows the player to configure a "key phrase", that when is contained in a message received by the ClientReceiveMessageEvents listener (which receives both local and global chat events) will initiate a shock.

These changes have been tested locally and appear to work as intended.