Made a small workaround to get !think to work again

Added 15 minute random phrase

Changed:
- Now ignores illegal characters while searching through its database, improving results.

Added:
- Console command do enable/disable greeting instructions

Changed:
- Seamless database saving, now appends to the save file. No longer a save interval clogging up server console.

Changed:
- Blacklisted word detection improved

Changed:
- Localized variables to prevent clash with other addons.
- Fixed saving in lower case.

Added:
- Net library usage, now he will chat with coloured text like a player.
- All messages said by The Thinker now prints in server console.

Changed:
- Fixed greeting message displaying when The Thinker is offline.
- Fixed weird characters being saved to the database

None Provided