Feedback on good_lp

[lovasoa]

Hello @jcavat !
Sorry for polluting the issue section, but I finished a first iteration of the improved API for linear programming I was mentioning in #66 (comment). It is in early stage, but I would love to get your feedback on the API design.

Here it is:
- https://github.com/lovasoa/good_lp
- https://crates.io/crates/good_lp
- https://docs.rs/good_lp

[lovasoa]

Compared to this crate, it doesn't handle non-linear objectives and constraints, but it is immensely faster when handling large problems. I have a test for a sum of 100k variables.

[jcavat]

very elegant ! You should consider at least quadratic inequalities. It seems it's now well supported by CBC.

[lovasoa]

Would you be interested in contributing ? Can I add you as a maintainer ?