Enable users to exclude data sets from the list

[adam-wolfe]

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

Users familiar with ISPF may be used to using EXCLUDE to filter out data sets that are listed in DSLIST. Zowe Explorer does not provide this capability.

Describe the solution you'd like

Add the ability to exclude data sets from the tree view using a filter entered by the user.

Describe alternatives you've considered

Zowe Explorer allows you to search using a filter, but the search filtering is only additive - i.e., there's no way to say get me everything under HLQ.TEST.* but exclude any DS with a name that contains load for example.

Additional context

To make this feature more usable/convenient, it would be good to be able to save a DS List/ref list (like the REFADDD command in ISPF), which would make it easy for users to gather a list of data sets rather than relying on favorited search queries.

Related to #3014

[github-actions]

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