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ENH: Allow disabling slice view interactions

Andras Lasso requested to merge github/fork/lassoan/disable-slice-view-actions into master

For interventional applications it is often necessary to prevent the user from manipulating a slice view (change selected slice, adjust window width/level, etc).

SetActionEnabled/GetActionEnabled methods have been added to specify which actions are allowed in a slice view (default behavior is the same as before: all actions are allowed).

Example:

interactorStyle = slicer.app.layoutManager().sliceWidget('Red').sliceView().sliceViewInteractorStyle()
interactorStyle.SetActionEnabled(interactorStyle.BrowseSlice, False)

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