Blob Refactor (#4348)

* Updated to new blob structure

* Clean up after being able to look at all of the changes at once

* Changed the history read to return a history object rather than a pointer

* Addressed PR feedback

* Imagepolygon Update (#4308)

* Converted Imagepolygon to no longer be a subclass of blob

* Updated Imagepolygon with constructor chaining

* Fixed error message

* Refactor OriginalLabel class to remove inheritance from Blob (#4309)

* Initial refactor of OriginalLabel class

* Addressed PR feedback

* Fixed error message

Co-authored-by: Jesse Mapel <jmapel@usgs.gov>

* Modified Table to not inherit from Blob anymore (#4312)

* Ported Table test to gtest

* Table refactor

* Fixed merge issue

* Fixed merge issues

* Removes blob inheritance from OriginalXmlLabel (#4316)

* Initial refactor of OriginalLabel class

* Addressed PR feedback

* Fixed error message

* Remove blob inheritance from originalxmllabel

* Removed commented / old code

* Added byte order specification

* History object tests (#4314)

* Adds History object tests

* Updated blob tests to use a non-pointer variable

* Removed gisblob from isis (#4329)

* Removed blob inheritance from stretchblob (#4331)

* Removed blob inheritance from stretchblob

* Addressed feedback + working read/write

* Updated cubestretch with the stretch blob functionality

* Removed stretchBlob and updated cubestretch/cube with read write functionality

* Replaced readStretchBlob with readCubeStretch

* Fixed segfault

* Removed debug print statements

* Added check for existence of OriginalLabel before attempting to propagate

* Addressed PR feedback

Co-authored-by: Adam Paquette <acpaquette@usgs.gov>

* Removed StringBlob Class (#4321)

* Converted StringBlob

* Removed StretchBlob class

* Changed Blob setData to copy

* Added csminit change and docs

* Removed old memcopy

* History Blob Old Implementation (#4342)

* Implemented old history functionality

* Removed old history unit test

* Fixed original label reading

* Fixed Blob branch test failures (#4344)

* Fixed test failures

* More clean-up

* Fixed marci2isis test

* Blob final clean-up (#4346)

* Redid Blob writing

* Added docs

* Review feedback

* Fixed int comparison

Co-authored-by: Adam Paquette <acpaquette@usgs.gov>
Co-authored-by: AustinSanders <arsanders@usgs.gov>