Beta for new installer, optimized rendering, and debugging issues

• Rewritten installer
  • The installer for 2.0 - 2.1.1 was based on autogenerated code, and while it worked, it left much to be desired.
  • Removes any previous versions that use the Wix-based installer when a new version is installed.
  • Installs icon as a .ico file instead of a .exe file, to prevent Windows 8 and 10 trying to launch the icon instead of the application.
  • Much, much cleaner and simpler to maintain.
• Optimized design rendering
  • Design rendering takes about 1/2 the time it did in version 2.1.0 - should be closer to speed of version 1.5.1.
  • Should use fewer resources and clean up after itself better.
• embroideryInfo gets some new options
  • Now requires --debug for debug output.
  • Now accepts --all instead of a file name for --debug and --image, to process all files in the current working directory.
• Debugging changes to gather more information on a few bugs.
  • Printing crashes seem to be the most common, so added some checks on the resolution data retrieved from printer.
• New functionality for 'filter ugly stitches' setting
  • If enabled, stitches that appear to be movement-only will be filtered regardless of length.
  • To see this new functionality, enable 'filter ugly stitches' setting with a large value like 500.