Update blockchain RPC to report all BIP9 based on versionbitsinfo

Summary: It's somewhat strange that it was not done this way to begin with. Most likely due to the fact that there are no activation going on on Bitcoin Core at the moment.

Test Plan:

make check
./test/functional/test_runner.py

Reviewers: #bitcoin_abc, jasonbcox

Reviewed By: #bitcoin_abc, jasonbcox

Differential Revision: https://reviews.bitcoinabc.org/D5218