- Updated skip filters

- Updated copyright line

- Code cleanup
- Not finished

- Corrected regular experssions
- Not finished

- Added missing skip patterns
- Added multiple old copyright lines
- Added logic to keep new-line chars
- Not finished

- Updated file mode update in update_license_headers.py script

- Updated file mode update in update_license_headers.py script

- Updated license headers in update_license_headers.py script

- Updated license headers in update_license_headers.py script

- Added/Updated headers
- Added script to update copyright headers