refactor: Use netstandard2.0 as target framework to support wider frameworks

[nvborisenko]

List of changes

Currently Appium targets to support:

• net6.0
• net framework 4.8

It means that I cannot use Appium with .net framework 4.7

Types of changes

Use netstandard2.0 to cover more frameworks.

https://learn.microsoft.com/en-us/dotnet/standard/net-standard?tabs=net-standard-2-0#when-to-target-net80-vs-netstandard

For existing code that targets .NET Standard 2.0 or later, there's no need to change the TFM to net8.0 or a later TFM. The only reason to retarget from .NET Standard to .NET 8+ would be to gain access to more runtime features, language features, or APIs.

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change that adds functionality or value)
• Breaking change (fix or feature that would cause existing functionality not to work as expected)
• Test fix (non-breaking change that improves test stability or correctness)

Documentation

• Have you proposed a file change/ PR with Appium to update documentation?

This can be done by navigating to the documentation section on http://appium.io selecting the appropriate command/endpoint and clicking the 'Edit this doc' link to update the C# example

Integration tests

• Have you provided integration tests for your changes? (required for Bugfix, New feature, or Test fix)

Details

Please provide more details about changes if necessary. You can provide code samples showing how they work and possible use cases if there are new features. Also, you can create gists with pasted C# code samples or put them here using markdown.
About markdown please read Mastering markdown and Writing on GitHub

[Dor-bl]

Why was this removed?

[nvborisenko]

Removed and added netstandard2.0

[nvborisenko]

If you mean licence.txt, then it was duplicated.

[Dor-bl]

Shouldn't be we keep it?

[nvborisenko]

Removed here, added upper.

[Dor-bl]

@nvborisenko have you run some tests against .NET framework 4.7+?

[nvborisenko]

Do you know any known issues?

[nvborisenko]

Only .net framework 4.7 is under interest? netstandard2.0 is supported by .net framework 4.6.1

[Dor-bl]

You said you were trying to run with. Net 4.7, so this is why I asked.
:)

[Dor-bl]

Do you know any known issues?

Should be the same issues I had for 4.8 😁

[nvborisenko]

I am not from Selenium team, I am contributing as personal.

[nvborisenko]

As for Selenium:

[nvborisenko]

And you will be surprised if you look at dependencies of Playwright.

[Dor-bl]

Ok. Let's go ahead with this change.
Fingers crossed :)

[nvborisenko]

Selenium is already felt it.