first pass at using @chia_command without a group

[altendky]

Purpose:

with click you can both @some_group.command() to add a new command or some_group.add_command(). This makes it possible to code both with a command -> group dependency or a group -> command dependency depending on the situation. this pr makes the second pattern possible via the new get_chia_command_metadata() function. it is also applied to the chia.cmds.signer module to eliminate a circular dependency with the chia.cmds.wallet module.

Current Behavior:

New Behavior:

Testing Notes:

[github-actions]

File	Coverage	Missing Lines
chia/cmds/cmd_classes.py	92.3%	lines 278

Total	Missing	Coverage
46 lines	Unknown	97%

[coveralls-official]

Pull Request Test Coverage Report for Build 12303027967

Details

• 45 of 46 (97.83%) changed or added relevant lines in 5 files are covered.
• 27 unchanged lines in 9 files lost coverage.
• Overall coverage increased (+0.002%) to 91.519%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
chia/cmds/cmd_classes.py	12	13	92.31%

Files with Coverage Reduction	New Missed Lines	%
chia/data_layer/data_store.py	1	95.47%
chia/timelord/timelord.py	1	80.0%
chia/daemon/keychain_proxy.py	1	73.16%
chia/farmer/farmer.py	1	73.32%
chia/daemon/client.py	1	74.01%
chia/server/node_discovery.py	2	82.02%
chia/server/server.py	4	81.9%
chia/server/address_manager.py	7	90.48%
chia/full_node/full_node.py	9	86.55%

Totals
Change from base Build 12301024853:	0.002%
Covered Lines:	104730
Relevant Lines:	114246

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💛 - Coveralls