* Add validation for new file names for sql projects
* Addres comments and add validation for new project dialog
* Address comments
* Address comments on test
* Fix tests
* Remove extra error messages and rename file
* Address comments
* Fix tests
* Add test file back
* add step to choose target platform in new project quickpick
* add comment
* only splice if the default target platform index isn't -1
* change 3 to 5 in comment