Completed test cases for mark-point. Resolved Issue #972
Completed test cases for mark-point. Resolved Issue #972

uwdata/vega-lite,vega/vega-lite,vega/vega-lite,uwdata/vega-lite,vega/vega-lite,uwdata/vega-lite,uwdata/vega-lite,uwdata/vega-lite,vega/vega-lite,vega/vega-lite