* Add open book option in UI
* Add dropdowns option on dialog
* Add flow logic
* Fetch releases and validate URL
* Add class for github books and shared file books
* Change code structure
* Unblock local copy + stack overflows
* Download books from github
* Remove unused files
* Clean code and use the openNotebookFolder command to open remote book
* Checkpoint
* Refactor remote book dialog model to only hold data
* Remove ApiWrapper and refactor createlocalcopy method
* Use sinon js framework instead of typemoq for testing remotebookController
* Remove api wrapper
* Add some tests
* Add more tests and address pr comments
* Address PR comments
* Fix remotebook broken tests
* Add download location in output channel and use openBook command
* Address PR comments
* Fix typos, print error message and remove failing test
* Print error message
* Separate tests in different files
* Declare controller variable inside extension.tst
Co-authored-by: chlafreniere <hichise@gmail.com>