Jordan W. Bishop

Avoid errors like (#9) by rewriting the function arguments to accept separate back-azimuth and incidence angle arguments. Moreover, we can make sure the incidence angle is between 0 and 90...

Not an issue for IMS arrays, but it may be for campaign style arrays. It would fit into the `array_characterization` module. References: Edwards and Green (2012) Nouvelle et. al (2014)

We could also add an option to plot the beam for a specified vel and baz, but perhaps that is best left for a future change _Originally posted by @davidfee5...