[RPC] Adding ::minRelayTxFee amount to getmempoolinfo and updating help
Summary:
These are RPC document changes from #11475 which is now merged. Took into consideration comments from #11475 and #6941 for this PR. Biggest change here is when calling getmempoolinfo, will now show the minrelaytxfee in the JSON reponse (see below): $ bitcoin-cli getmempoolinfo { "size": 50, "bytes": 13102, "usage": 70480, "maxmempool": 300000000, "mempoolminfee": 0.00001000, "minrelaytxfee": 0.00001000 } Fixes #8953
Backport of core PR12001
https://github.com/bitcoin/bitcoin/pull/12001/files
Depends on D3431
Test Plan:
./test/functional/test_runner.py mempool_limit bitcoin-cli help getmempoolinfo
Reviewers: #bitcoin_abc, deadalnix, jasonbcox
Reviewed By: #bitcoin_abc, jasonbcox
Differential Revision: https://reviews.bitcoinabc.org/D3432