Gopro13 & CSV support

New features

• Added support for GoPro13 (fixing some missing tags, supporting the new "non-unicode" tags.
• Added support for export to CSV along the gpx and kml files.

What's Changed

• Update README.md by @ChristopheVeber in #52
• FIx unit tests by @ChristopheVeber in #55
• Update README.md by @ChristopheVeber in #56

New Contributors

• @ChristopheVeber made their first contribution in #52

Full Changelog: 1.1.0...1.1.1