Improve intelligent code snippet prompt and parameter prompt of pytorch module with Jedi

[CatNofishing]

The smart snippet hints for classes and functions in pytorch are very bad, some function parameter hints are weak, and the smart snippet layout is confusing.And the smart clip is incomplete. I hope you can improve the experience of pytorch framework in vscode.

[karthiknadig]

Related #11995, the LSP will use script.help API from jedi, which should produce better hover experience than what we have right now.

[luabud]

This should be improved if you use "JediLSP" in your python.languageServer setting 😊