improvement: support binning point selection in altair #6983
      
        
          +1,513
        
        
          −48
        
        
          
        
      
    
  
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Fixes #6829
This adds support for binning + chart selection. This also works for binning in the legend as well.
One thing I could not get working in the visual highlighting for interval selection + binning. The data filtering does work, but not the highlighting, so i log a warning to the user.