Update WebSocket Sharp

[Bluedragonplayz2]

• [Y ] I am at the right place and my issue is directly related to ROS#. General technical questions I would post e.g. at ROS Answers or Stack Overflow. For library-specific questions I would look for help in the corresponding library forums.
• [Y ] I have thoroughly read the Contributing Guideline and writing this issue is the right thing to do in my case.

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I want to do this:

Creating a interface to monitor robot health.

For being able to do it, I wish ROS# had the following feature:

ROS# should change the WebSocket-sharp dependency, the current Nuget package is a fork that is no longer maintained, although the official repository is a preview version it is better maintained and has more features. The official nuget package is https://www.nuget.org/packages/WebSocketSharp.

[Bluedragonplayz2]

part 2: allow the user to gain more fine control of the websocket client, currently there is no good way to add websocket authentication without creating a whole new WebSocketNetProtocol to add the header, maybe have an alternative constructor for Ro s Socket to facilitate this modification