* expose addToProject in dataworkspace.d.ts
* remove changes in data workspace extension
* add sqldbproj.d.ts
* change list to be Uris instead of strings
* don't add files/folders if any don't exist
* fix test on windows
* Adding mock contents for tree
* added open sqlproj dialog
* reading files from directory
* Added directory traversal
* Adding tree sorting by folder vs file and label
* Improved auto-unfolding of tree based on node type
* replacing fs with fs.promise alias
* added activation event for when workspace contains sqlproj files
* Returning after displaying error