v0.12.0.gsc20220302.0

Fixes the issue where French translations still display as English in pygeoapi Docker image due to messages.po not compiled into messages.mo.

What's Changed

• Dockerfile: Use pybabel to compile translation files by @anthonyfok in #22
• Add setup.cfg for convenience commands for translations by @anthonyfok in #24
• Update French translation by @anthonyfok in #23

Full Changelog: v0.10.1.gsc20220228.0...v0.12.0.gsc20220302.0