feat: add back limits with same shape as values #199
Description
Is your feature request related to a problem? Please describe.
Some variables, such as the center, naturally benefit from having limits with the same shape as the value. For example one may wish to restrict the center to a given value +- 5 arcsec, this can be done with limits.
Describe the solution you'd like the two elements of the limits tuple should be tensors with the same shape as the values
Describe alternatives you've considered currently only a single value is allowed.