Chart: Plugin optimization

[tesar-tech]

Description

(originally in #6028)

• Puts common logic and properties into ChartPlugin.
• Solves pain-points of async eventing between chart and plugins.
• Changes how plugins are connected to the BaseChartOfT
• Adds few comments about the connection

This optimization will reduce the necessary code in every plugin significantly, can solve the disposing on one place in initializing on one place. Potential bugs will be solved for all of the plugins at one place.

• Trendline plugin is different - I added comments inside the ChartTrendline.razor.cs

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To answer the questions from previous pr:

Why Trendline doesn't have the DisposeAsync implementation ?

I think it is just missing the same disposal logic as the other plugins, it's about the await JSModule.SafeDisposeAsync(); that is missing.

Why Streaming doesn't have the OnParameterSet implementation?

Part of the "refresh" strategy is done in Refresh method, but the parameters Vertical and Options wont't get there. They are used only in plugin initialization. Thus I think, the OnParameterSet should have its implementation. But maybe I am missing something.

[stsrki]

Looking good. I made some changes on the method names and structure of the code, but overall the principle is the same.

If there is any need update the docs. And also add release notes.