[CHIA-3205] unify test constants on the ones used by BlockTools

[arvidn]

Purpose:

Any test that uses the test blockchains must match test constants with BlockTools, since it generates those test chains.
It minimizes the risk of diversion by using a single set of test constants.

Here are the BlockTools's constants: https://github.com/Chia-Network/chia-blockchain/blob/main/chia/simulator/block_tools.py#L129

Note

BlockTools is actually considered "production" code, since it's part of the simulator, which is a supported developer tool.

This adds another dependency from the tests to production code, which is fine.

This alters DIFFICULTY_STARTING from 2^9 -> 2^10 for the tests.

Current Behavior:

BlockTools has its own test_constants and all tests have their own.

New Behavior:

BlockTools and test share the same test constants.

[coveralls-official]

Pull Request Test Coverage Report for Build 15909222920

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• 48 unchanged lines in 10 files lost coverage.
• Overall coverage decreased (-0.03%) to 91.317%

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Files with Coverage Reduction	New Missed Lines	%
chia/daemon/client.py	1	74.72%
chia/plotters/plotters.py	1	90.94%
chia/rpc/rpc_server.py	1	88.54%
chia/consensus/blockchain.py	2	94.48%
chia/server/node_discovery.py	2	80.32%
chia/timelord/timelord.py	2	80.79%
chia/full_node/full_node.py	4	87.96%
chia/full_node/weight_proof.py	4	90.6%
chia/plotters/madmax.py	6	44.58%
chia/_tests/core/util/test_lockfile.py	25	77.31%

Totals
Change from base Build 15908298283:	-0.03%
Covered Lines:	101760
Relevant Lines:	111312

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💛 - Coveralls