[Bug]: Memory Leaks

[wallstop]

Description

We use buffers to keep the framework zero alloc. If message types change over the course of the program, we leave those buffers around. We need a cleanup strategy, like what https://github.com/wallstop/unity-helpers implements

Steps to Reproduce

1. Use a lot of different types of messages, and then stop

Expected Behavior

Memory is reclaimed

Actual Behavior

Memory is not reclaimed

Unity Version

2021.3 LTS

Package Version

2.1.5

Platform

• Editor
• Windows
• macOS
• Linux
• iOS
• Android
• WebGL
• Other

Additional Context

No response