Register 0.3.0

[scheinerman]

@JuliaRegistrator register

Release notes:

Breaking changes

• Changes to the Tableau data structure so it now records if it was created from canonical data.
• Changes to the output of simplex_solve! and lp_solve for canonical LPs; we don't show the values of the artificial slack variables.

Other changes

• Various enhancements and a new status function.

[JuliaRegistrator]

Registration pull request created: JuliaRegistries/General/137964

Tagging

After the above pull request is merged, it is recommended that a tag is created on this repository for the registered package version.

This will be done automatically if the Julia TagBot GitHub Action is installed, or can be done manually through the github interface, or via:

git tag -a v0.3.0 -m "<description of version>" 41dfc2d5cf5d445af7feef9dcf3ad4f5b3bc7844
git push origin v0.3.0