Validator Permit should only be given if you also have the min_stake

[camfairchild]

Is your feature request related to a problem? Please describe.

Currently, the vpermit process does not account for the min_stake needed to set_weights. Meaning, a peer can both have a vpermit and not have enough stake to act as a validator, making the metagraph inconsistent.

Describe the solution you'd like

The solution is to check for min_stake when we set the vpermits.

Describe alternatives you've considered

No response

Additional context

No response

[ppolewicz]

vpermit should be given to no more than maximum number of validators set by a hyperparameter, sorting them from top effective stake to the bottom, but only to those that satisfy the min_stake requirement