Add stochastic block model generator

[SILIZ4]

This naive O(n^2) algorithm might not be the fastest possible algorithm since there exists a O(m) algorithm for G(n, p), but I didn't see how to generalize it for non square "sub-matrices". I'm not convinced that networkx's implementation with iterators is actually more efficient.

I was unable to add hyperlinks to the G(n, p) generator in rustworkx and rustworkx-core. Is there a way to do so?

[coveralls]

Pull Request Test Coverage Report for Build 9238376817

Details

• 132 of 133 (99.25%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 96.025%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
rustworkx-core/src/generators/random_graph.rs	72	73	98.63%
<!--	Total:	132	133	99.25%	-->

Totals
Change from base Build 9192798441:	0.02%
Covered Lines:	17105
Relevant Lines:	17813

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💛 - Coveralls

[IvanIsCoding]

This naive O(n^2) algorithm might not be the fastest possible algorithm since there exists a O(m) algorithm for G(n, p), but I didn't see how to generalize it for non square "sub-matrices". I'm not convinced that networkx's implementation with iterators is actually more efficient.

I was unable to add hyperlinks to the G(n, p) generator in rustworkx and rustworkx-core. Is there a way to do so?

By the way, for links you want:

• rustworkx you use something like this (https://github.com/Qiskit/rustworkx/blob/955d9890ac7073c3eb8878e4fdcfeedfeef3e73d/releasenotes/notes/fix-type-search-6abecbc064e1dbf0.yaml#L4),
• For rustworkx-core follow the rustdoc guide https://doc.rust-lang.org/rustdoc/write-documentation/linking-to-items-by-name.html

[SILIZ4]

I wasn't sure how dependencies versions should be handled so I added ndarray directly with cargo. Docs hyperlinks are fixed. I also changed the first argument for the community sizes instead of membership. It makes more sense and is what networkx uses.

[IvanIsCoding]

I wasn't sure how dependencies versions should be handled so I added ndarray directly with cargo. Docs hyperlinks are fixed. I also changed the first argument for the community sizes instead of membership. It makes more sense and is what networkx uses.

I will tweak ndarray to use Cargo workspaces