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- Check for keymap availability to suppress warning messages when running
  blender in background mode

indentation edits and copy pyrimid from contrib (where I had made some edits), removed so this wont happen again.

Plus a few styling enhancements.

[[Split portion of a mixed commit.]]

- remove unused imports
- remove/comment unused vars
- fix for some bugs with unused vars being used

update to able to export all action set that matches the bones that some were ignore or couldn't be added in.

added some features to able to delete first index action set and remove all mesh vertex weight selected mesh.

Fixed the select smoothing face that was not working. Added console output for making sure it working or not on the button.

work in progress addon: demo mode, use for easy setup for looping over blend files, rendering, playing, switching screens.