Project autoplot-test052

run scripts listed in https://github.com/autoplot/dev/blob/master/test052.txt, check that results haven't changed.  The goal here is to provide an easy method to create tests, where users of the software can create arbitrary tests, and ultimately a method where people can submit tests for nightly testing.  Artifacts starting with "test" and ending with ".txt" and ".png" are archived.

Eventually, scripts with the parameter "test" will run through all enumerated test numbers, besides zero (which can mean normal operation).