CHIA-3704 Optimize peak post processing by using transaction IDs instead of NewPeakItem elements

[AmineKhaldi]

Purpose:

When preparing NewPeakInfo to pass from the mempool to the full node for new peak post processing, we only end up using transaction IDs Out of NewPeakItem elements.

The origin of this logic seems to be PR #1174 but even then, the mempool item should cover the information needed in that context.

Current Behavior:

We construct a list of NewPeakItems as items in NewPeakInfo.

New Behavior:

We construct a list of transaction IDs in NewPeakInfo.

[coveralls-official]

Pull Request Test Coverage Report for Build 17640775329

Details

• 12 of 12 (100.0%) changed or added relevant lines in 3 files are covered.
• 31 unchanged lines in 11 files lost coverage.
• Overall coverage decreased (-0.02%) to 91.244%

---

Files with Coverage Reduction	New Missed Lines	%
chia/daemon/client.py	1	74.16%
chia/daemon/keychain_proxy.py	1	70.57%
chia/daemon/server.py	1	83.54%
chia/farmer/farmer.py	1	73.32%
chia/full_node/full_node.py	1	88.11%
chia/server/node_discovery.py	2	82.11%
chia/timelord/timelord_launcher.py	2	89.29%
chia/full_node/full_node_api.py	3	85.75%
chia/rpc/rpc_server.py	3	88.71%
chia/server/address_manager.py	5	92.84%

Totals
Change from base Build 17624749078:	-0.02%
Covered Lines:	102833
Relevant Lines:	112566

---

💛 - Coveralls