map2map conversion (#4435)

* added code for two tests

* test modifications

* changed crop input and ouput function

* fixed last two tests

* added more tests

* converted map2map

* added conversion code for map2map

* bring crop tests up to date with dev

* added modifications to map2map and tests

* final changes for map2map tests

* Converted app and default test

* Converted tests

* Added histograms to tests.

* Rename FunctionalTestsMap2Map.cpp to FunctionalTestsMap2map.cpp

Co-authored-by: Amy Stamile <astamile@contractor.usgs.gov>
Co-authored-by: Amy Stamile <74275278+amystamile-usgs@users.noreply.github.com>