Reduce Message Queue Requirements To Work With Default Max Size

[yumedev40]

Currently the addon requires a message queue size increase from 1024 kb (default) to 4096 kb to avoid running out of memory and subsequently crashing the editor.

Ideally, the addon would run perfectly without the need for the user to increase the message queue size.

This will require the following:

• Understand the Message Queue and how to avoid using too much of it
• Identify which segments of the addon are effecting the Message Queue most severely
• Reduce added load to Message Queue by optimizing the heaviest aspects of the addon

[yumedev40]

Apparently, this issue will be resolved in Godot 4.0 by adding a paging system to the Message Queue to allow it to scale dynamically as needed.

So in the meantime, to avoid clashing with those proposed changes, upping the max size for the message queue is acceptable. However, general optimization/restructuring of the code should still be considered.

godotengine/godot#17693

[yumedev40]

Leaving open until such time that the message queue problem is resolved.