* fixed failing integration tests, upgraded test projects to .NET Core 3.1
added more nulled properties for those that can be altered on the API
closes#146
* bumping test projects up to .NET 6
* adding specific solution to dotnet commands (was breaking after adding second sln)
* solution name in title instead of command!
* dummy commit to test push for actions
* another dummy commit
* adding pull_request trigger
- Upgrade JSON.NET from 6.0.8 to 9.0.1
- Change from Microsoft.Net.Http 2.2.28 to System.Net.Http 4.3.0 (this package doesn't support .Net Standard 1.0)
- This commit deprecates support for Windows Phone Silverlight 8.0
- Remove IF.Lastfm.SQLite project from the solution so it can be upgraded to .Net Standard separately
