Migrated abc-p2p-compactblocks.py off of ComparisonTestFramework

Summary: Progress towards T669

Test Plan: test_runner.py abc-p2p-compactblocks

Reviewers: #bitcoin_abc, deadalnix, Fabien

Reviewed By: #bitcoin_abc, Fabien

Subscribers: Fabien

Maniphest Tasks: T669

Differential Revision: https://reviews.bitcoinabc.org/D3996