IP Secure

🥳 IP Secure 🥳

New features

• This release adds support for IP Secure tunnelling through #879 (@farmio and @marvin-w).
  Thanks to MDT for providing us an interface for testing purposes!
• Add support for requesting tunnel interface information #856 (@farmio)

Breaking changes

• Drop support for python 3.8 by @marvin-w in #860

Internals

• Return bytes from to_knx() in knxip package by @farmio in #867
• Upgrade test and lint environment by @farmio in #876

Full Changelog: 0.19.2...0.20.0