v0.1.3

• Dockerfile to run test suite in Github Actions on commit
• updates to remote attach
  • tdb -r [HOST:]PORT works without a source file; remote code transfers code to tdb and tdb pauses on attach
  • new switches --local-root and --remote-root to specify locations of source code (necessary when specifying breakpoints on the command line and local and remote environments have code at different locations)
  • now works in headless mode
  • better error message when remote isn't running a debugpy service
• Variables View brings up a modal when double clicking (or select+Enter) on a variable name; useful for large or deeply nested variables
• new keybinding: e brings up the most recent error in a modal
• new switch --pv as a synonym for --python .venv/bin/python