Allow users to access persistent data from Zowe Explorer local storage

[benjamin-t-santos]

Is your feature request related to a problem? Please describe.

In v2, persistent data like filter history and favorites for data sets, USS, and jobs were stored in the Visual Studio Code settings. This made it simple for extenders to access and read this data.
In v3, this data was moved to VS Code storage, and now there is no way for extenders to access it.

Describe the solution you'd like

I would like this persistent data to be accessible for extenders like it was in v2. This could be in the form of registered commands for getting/setting persistent data. You could also expose each resource's ZoweTreeProvider to extenders.

Describe alternatives you've considered

I tried accessing the ZE's new storage using the keys available in the Zowe Explorer API, but because I cannot access Zowe Explorer's extension context, there is no way for me to access its memento storage.

Additional context

[github-actions]

Thank you for raising this enhancement request.
The community has 90 days to vote on it.
If the enhancement receives at least 10 upvotes, it is added to our development backlog.
If it receives fewer votes, the issue is closed.