feat: p2p mtm

[boecklim]

Description of Changes

This is PR #686 rebased on latest main branch

• replace go-p2p with internal implementation in metamotph.
• rename blockchain_communication -> bcnet
• rename blocktx_p2p -> p2p and metamorph_p2p -> p2p
• add 'auto batching' to p2p/network_messenger (used batch_processor from refactor(ARCO-212): Introduce batch processor for chain hashes libsv/go-p2p#34)

Linked Issues / Tickets

Reference any related issues or tickets, e.g. "Closes #123".

Testing Procedure

Describe the tests you've added or any testing steps you've taken.

• I have added new unit tests
• All tests pass locally
• I have tested manually in my local environment

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have updated CHANGELOG.md with my changes

[sonarqubecloud]

Quality Gate failed

Failed conditions
65.2% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud