Remove chia-blockchain dependency for most of chia_rs

[matt-o-how]

This PR removes imports from test_blscache.py and deletes test_program_fidelity.py.

It also removes the python running from block_record.rs by implementing pot_iterations.py inside the class

[arvidn]

this is a really nice change. However, I think it would be good to check the correctness of this against the existing python implementation. One way to do that would be to break this off into a separate PR that still relies on the chia-blockchain dependency to compare the result between the rust and python implementation. Can you think of another way to be confident in the correctness of this port?

[coveralls-official]

Pull Request Test Coverage Report for Build 12992847296

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

• 201 of 232 (86.64%) changed or added relevant lines in 4 files are covered.
• 303 unchanged lines in 13 files lost coverage.
• Overall coverage decreased (-0.2%) to 84.238%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
crates/chia-protocol/src/pot_iterations.rs	175	182	96.15%
crates/chia-protocol/src/block_record.rs	21	33	63.64%
crates/chia-protocol/src/pos_quality.rs	0	12	0.0%

Files with Coverage Reduction	New Missed Lines	%
crates/chia-protocol/src/lazy_node.rs	1	90.91%
crates/chia-puzzle-types/src/puzzles/standard.rs	3	76.32%
crates/chia-puzzle-types/src/puzzles/singleton.rs	3	29.17%
crates/chia-puzzle-types/src/puzzles/offer.rs	4	95.4%
crates/chia_streamable_macro/src/lib.rs	7	95.96%
wheel/src/run_program.rs	7	76.67%
crates/chia-consensus/src/fast_forward.rs	8	97.88%
wheel/src/api.rs	20	85.43%
crates/chia-bls/src/signature.rs	22	94.91%
crates/chia-bls/src/public_key.rs	37	91.26%

Totals
Change from base Build 12797692864:	-0.2%
Covered Lines:	13655
Relevant Lines:	16210

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💛 - Coveralls

[Rigidity]

I think you have to do #[cfg_attr(feature = "py-bindings", pyo3::pyfunction)] instead?