Add feature mapping

What's Changed

• Create github-actions-demo.yml by @EJOOSTEROP in #1
• Create build-container.yml by @EJOOSTEROP in #2
• Container build by @EJOOSTEROP in #3
• Update dockerfile by @EJOOSTEROP in #4
• Update dockerfile by @EJOOSTEROP in #5
• Update dockerfile by @EJOOSTEROP in #6
• Update dockerfile by @EJOOSTEROP in #7
• Container action by @EJOOSTEROP in #8
• Release by @EJOOSTEROP in #9
• Add Feature mapping, additional test and documentation. by @EJOOSTEROP in #16

New Contributors

• @EJOOSTEROP made their first contribution in #1

Full Changelog: https://github.com/EJOOSTEROP/mimodast/commits/v0.3.0