[Request] Ability to suppress "vexity check" warnings

[david-vicente]

When printing the problem tree, warnings such as
Warning: Expression not DCP compliant. Trying to solve non-DCP compliant problem
kinda get in the way and mess the structure of the tree.

Sometimes we want to solve problems that aren't DCP compliant, for example using alternating minimization, so the warnings aren't really helping.

It would be nice to have the ability to suppress them at will.

Thank you.