Initial ClipperNacRollingShutterCameraModel and associated classes PR (#3657)

* Adds NthOrderPolynomial class needed for jitterfit (for EIS) to ISIS

* Remove incorrect documentation

* Update unitTest output

* Remove unnecessary Makefile

* Adds NthOrderPolynomial class to ISIS needed for jitterfit for EIS (#3639)

* Adds NthOrderPolynomial class needed for jitterfit (for EIS) to ISIS

* Remove incorrect documentation

* Update unitTest output

* Remove unnecessary Makefile

* Adds ingestion application eis2isis to ISIS (#3638)

* Initial commit of eis2isis

* Remove references to EISBlob in comments and remove unnecessary Makefiles

* Initial EIS Camera model commit with associated classes

* Convert initial RSCameraDetectorMap unit test to a gtest

* Changes in response to review comments: add checks to make sure tables and keywords exist before setting

* Updated with old-style unit tests for camera models