[net processing] Add m_our_services and m_their_services to Peer

Summary:
Track services offered by us and the peer in the Peer object.

This is a partial backport of core#25514
https://github.com/bitcoin/bitcoin/pull/25514/commits/1f52c47d5c09b59fd3153700751c74e63edc7d7e

Test Plan: ninja all check-all

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Differential Revision: https://reviews.bitcoinabc.org/D14745