Improve Command Handling

[pixeldesu]

Command handling currently is causing a lot of database queries, which linearly scale up with the amount of commands for a specific event type from Discord.js.

Explanation:

• Discord.Client sends us the event message
• We have 8 commands with the the message event type
• Once the CommandManager is created, we create a handler for each of the 8 commands on the message event (this.client.on('message'...)
• In each of those handlers, before we execute the command, we check if command.name is enabled in the database, causing 8 queries with the arrival of a single message from Discord.

ToDo / Goals:

• Find a way to drastically minimize database queries to as low as possible. (Caching/etc.?)