hideal2pds #3978 fix (#3998)

* addresses #3978

* corrects for all but 16 bit compression

* corrects for all but 16 bit compression

organize template files and add 8bit version

use 8bit template when 8bit

Delete .nfs00000001d83de60d0000003e

remove accidental file

Updated equalizer output (#4000)

* Fixed equalizer output

* Added changelog

* Added issue number

Stats Docs (#3923)

* Updated stats documentation

* Updated stats docs based on feedback

isis2raw pure export update (#4002)

* Changed check and set range logic/removed duplicate code

* Added history comment and moved function outside of if statement

* Fixed pixel type prapogation and boolean logic

* Addressed PR feedback

* Updated the changelog

Add GUI helper to hist so user can see what the minimum and maximum DN values are of the specified band of the cube

Update CHANGELOG.md

update CHANGELOG and rebase to upstream dev

documentation

update CHANGELOG and rebase to upstream dev

documentation