Added dart chrome app to templates
Renamed to .sparktemplate and removed icon
Added template for dart web app
Removed dart chrome app template
Added radio buttons for empty and web app as well as commented out radio buttons for chrome apps (dart and js) and js web app
Renamed files and created setup.json for copying files
removed extensions
Renamed pub files for template
Implemented all of project copying. One error remains during file write (noted in comments)
Took chooser out of ProjectBuilder and using the New Project chooser
Removed pubspec.lock file
Renamed files to source.ext_
Extracted ProjectBuilder from spark.dart
Added imports
Fixed mutating code and switched out copying code for mutating code.  Added formatting code to sample code bodies. Cleaned up code.  Simplified samples.
Fixed replacers to use . instead of .. and fixed source to include _source_name_ rather than _project_name_
Resolved conflicts
review fixes
Storing location.entry for reuse and enclosing project linking into future
Merge pull request #1153 from umop/umop-templates

Templates