* Use Central Package Management
* Add Directory.Packages.props to solution files
* remove sourcelink version from common.props
* remove old entry from signlist
- change macOS 11 ci builds to newer ones, macOS 11 is deprecated
- fix Opc.Ua.Client EventSource message numbering
- bump nerdgit to 3.6.139
- include .NET Standard 2.0 builds back in Nuget packages for client and server (complex type support requires netcoreapp2.1 which is end of life)
- include .NET Framework 4.7.2 as lowest supported .NET Framework platform
- move https client channel back to core library, as it requires only netstandard2.0 and has no other dependencies.
- Opc.Ua.Https is now only needed for a https server with kestrel.
- fix security warning for system.private.uri
- upload Quickstarts.Servers to the preview feed to allow use in the samples repo and avoid duplicate codebase
Marc Schier