Support for .NET standard 2.0 and/or 2.1

[rangers-globecar]

Is there any reason this project is not compiled against netstandard2.0 ? I checked all the dependencies, and they would all be compatible with netstandard2.0

this would enable us to use it with legacy (for example 4.8) application that are migrating.... to be able to breakout components-by-components....

[halspang]

@robert-stratecglobal - Thanks for opening this issue! However, we have no plans to support netstandard and have turned it down in the past. We have limited resources here and want to limit our scope to match the supported versions of .NET. netstandard is past LTS (so is 5.0). Though we'll retain 5.0 since we already support it and can't remove it without a breaking change, we don't want to bring on netstandard.