Network Transport Abstraction

[HexaField]

Summary

• Adds a new object to the Network interface named transport that begins to abstract the network I/O
• Replaces Network classes with objects for tighter reactive bindings
• Cleans up some references and state in the server

References

closes #7179

Checklist

• If this PR is still a WIP, convert to a draft
• When this PR is ready, mark it as "Ready for review"
• ensure all checks pass
• Changes have been manually QA'd
• Changes reviewed by at least 2 approved reviewer

QA Steps

List any additional steps required to QA the changes of this PR, as well as any supplemental images or videos.

[speigg]

LGTM!