v0.21.0

What's Changed

• Added fully featured v16 config as an example by @Pietfried in #829
• Handle enum value in message queue and use if instead of switch to prevent compiler warnings by @hikinggrass in #867
• Refactored libocpp documentation by @Pietfried in #847
• Refactor of message dispatching by @Pietfried in #864
• 857 certificates handling over an unsecure connection in ocpp201 should not be allowed by @shingoxx222 in #863
• Move functionality of OCPP message id generation by @Pietfried in #869
• Update Reusable Workflow to v1.4.4 by @andistorm in #873
• Feature/data transfer functional block by @Pietfried in #871
• Libwebsockets (usage) improvements by @marcemmers in #870
• Fix bug in ClearChargingProfile.req by @Pietfried in #872
• Feature/327 use case h01 reservation by @maaikez in #854

Full Changelog: v0.20.0...v0.21.0