Pfeffernusse Loading Fixes (#384)

* Allow ALE to find both caps and not caps metakernels

* Label loading fix when given a PVLModule

* Remove old hard coded sensor_frame_id as kernel updates have fixed this

* Removed sensor_frame_id test as it's no longer being overwritten

* Reverted additional frame removal and updated frame chain with ISIS iak frame rotation

* Made the frame chain construct a completely different frame chain instead of using the frame chain from super

* Reverted old test and added new frame chain test

* Updated spacing and added a doc string

* Added check and test if the IAK frame is loaded