vtslab

@zdanial refers to making the following functionality available: [https://www.ag-grid.com/javascript-data-grid/component-cell-editor/](https://www.ag-grid.com/javascript-data-grid/component-cell-editor/)

The startup script is also sensitive to being called from an arbitrary location, see e.g.: [https://github.com/JanusGraph/janusgraph/issues/2985](https://github.com/JanusGraph/janusgraph/issues/2985 )