Upgrade d3-graphviz to version 3.0.5

Thereby upgrading Graphviz to version 2.42.4 through @hpcc-js/wasm
version 0.3.11.

Also updated the loading of the wasm script to refer to @hpcc-js/wasm
version 0.3.11.

Author: magjac

package-lock.json

@@ -26,7 +26,7 @@
   "dependencies": {
     "@material-ui/core": "^3.9.3",
     "@material-ui/icons": "^3.0.2",
-    "d3-graphviz": "3.0.4",
+    "d3-graphviz": "3.0.5",
     "d3-scale-chromatic": "^1.5.0",
     "d3-selection": "^1.4.1",
     "d3-transition": "^1.3.2",

package.json

@@ -676,7 +676,7 @@ class Index extends React.Component {
     return (
       <div className={classes.root}>
         {/* FIXME: Find a way to get @hpcc-js/wasm from the graphviz-visual-editor bundle */}
-        <script src="https://unpkg.com/@hpcc-js/wasm@0.3.8/dist/index.min.js" type="javascript/worker"></script>
+        <script src="https://unpkg.com/@hpcc-js/wasm@0.3.11/dist/index.min.js" type="javascript/worker"></script>
         <ButtonAppBar
           hasUndo={this.state.hasUndo}
           hasRedo={this.state.hasRedo}