feat: Autoconnect with network conditions simulation

[albertok]

Solves #401 and a little something extra.

1. Co-ordinates launched instances so one is the server and the others connect to it.
2. Simulates network latency and packet loss

Simply add it to your scene tree and configure the desired network simulation.
It will fire separate signals for the host and clients to bootstrap from.

Closes #401

[albertok]

@elementbound Review notes have been addressed. :)

[elementbound]

Note to self on remaining stuff:

• Ensure autoconnect doesn't accidentally run in CI
• Do another check to see which methods would make sense as public and private
• Update docs, since it's now an autoload