Unify assign_vector_potential and assign_balloon function input arguments in Maxwell 2D

[IreneWoyna]

Description of the feature

The 2 functions are used in the same way (and often they are interchangeable), but the input argument names are different in pyAEDT:

assign_balloon(self, edge_list, bound_name=None):
assign_vector_potential(self, input_edge, vectorvalue=0, bound_name=None)

I can implement the change, but I'm not sure how to maintain backward compatibility.

Steps for implementing the feature

No response

Useful links and references

No response

[gmalinve]

Closing as part of the keywords refactoring.