Feature request / enhancement: meridian flip

Dear astroplan developer,
Thank you for your work, I now use astroplan (mostly in simulations / tests right now) and I find it very useful.

I wanted to know if there was already, or if there is a plan to implement an automatic meridian flip block in the scheduler.
It would automatically add a meridian flip block during the acquisition, given a certain angular margin.

Thank you in advance for your help

Regards

The issue names no files, tests, or entry points. Start by locating the scheduler implementation and its existing block-handling behavior, then determine how an angular margin should trigger a meridian-flip block; done means the scheduler automatically inserts the block during acquisition according to that margin.

Written by the indexing model from the issue text.