CHIA-1716 Speedup get_header_blocks_in_range w.r.t. blocks with no transactions

[AmineKhaldi]

Purpose:

There is no point in getting additions and removals for blocks that do not have transactions.

Current Behavior:

get_header_blocks_in_range prepares additions and removals even blocks without transactions.

New Behavior:

get_header_blocks_in_range only prepares additions and removals for blocks with transactions.

[coveralls-official]

Pull Request Test Coverage Report for Build 11692794344

Details

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• 18 unchanged lines in 8 files lost coverage.
• Overall coverage increased (+0.02%) to 90.927%

---

Files with Coverage Reduction	New Missed Lines	%
chia/_tests/simulation/test_simulation.py	1	96.45%
chia/server/node_discovery.py	1	80.73%
chia/full_node/full_node.py	1	86.04%
chia/daemon/client.py	1	74.1%
chia/data_layer/data_layer.py	2	86.09%
chia/farmer/farmer_api.py	2	94.36%
chia/_tests/core/daemon/test_daemon.py	3	99.59%
chia/daemon/server.py	7	83.28%

Totals
Change from base Build 11691476343:	0.02%
Covered Lines:	102818
Relevant Lines:	112848

---

💛 - Coveralls

[arvidn]

are the reward coins for non-transaction blocks added with the next transaction block?

[AmineKhaldi]

are the reward coins for non-transaction blocks added with the next transaction block?

IIRC they get added in the transaction block after the next transaction block.