Chat messages containing hex colour codes don't appear in chat. #170

Describe the bug
Any chat message containing hex colour codes doesn't appear to anyone on the same spigot server as the sender.

To Reproduce
Use a MultiChat set-up with paper builds newer than build 473.

Expected behavior
The messages containing hex colour codes appear as normal.

Platform and Versions (please complete the following information):

• OS: [Centos 8]
• Java Version: [Java 11]
• MultiChat Version: [1.9.6]
• Proxy Version: [Waterfall-406]
• Local Server Version: [Paper-591]