Feature/check sum generator (#234)
* Add CheckSumGenerator boilerplate files
* Add progress loading for the hashing calculation
* Refactor compute hash helper
* Refactor incorrect variable name
* Add HashingHelper unit tests
* Update rews files
* Add compute hash iterations logic
* Short circuit CheckSum if file is null
* Disable hashing dropdown while processing
Apply code review suggestions
* Revert assembly info version
* Apply code review changes
* Remove ControlsToolKit xaml import
