Support for Kibana 7.3.0 (#9)

* [sankey]: Support for kibana 7.3.0

*  Add the Fontawsome dependency.

* Change the 'icon' attribute to the 'image' attribute which supports svg image.

README.md

@@ -1,6 +1,6 @@
 # Kibana Sankey Diagram Plugin
 
-This is a sankey diagram visType plugin for Kibana 6.8+.
+This is a sankey diagram visType plugin for Kibana 7.x.
 
 This plugin was developped from <https://github.com/elastic/kibana/pull/4832>.
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "kbn_sankey_vis",
-  "version": "6.8.0",
+  "version": "7.3.0",
   "authors": [
     "Chenryn <rao.chenlin@gmail.com>",
     "Ch-bas <bassem.chagra@uniberg.com>"
@@ -18,6 +18,7 @@
     "json-stable-stringify": "^1.0.1"
   },
   "devDependencies": {
+    "@fortawesome/fontawesome-free": "^5.10.2",
     "mocha": "~5.0.4",
     "nyc": "^13.3.0"
   }

public/kbn_sankey_vis.js

@@ -1,6 +1,4 @@
-
-  import 'ui/agg_table';
-  import 'ui/agg_table/agg_table_group';
+  import random from '@fortawesome/fontawesome-free/svgs/solid/random.svg';
 
   import 'plugins/kbn_sankey_vis/kbn_sankey_vis.less';
   import 'plugins/kbn_sankey_vis/kbn_sankey_vis_controller';
@@ -18,7 +16,7 @@
     return VisFactory.createAngularVisualization({
       name: 'kbn_sankey',
       title: 'Sankey Diagram',
-      legacyIcon: 'fa-random',
+      image: random,
       description: 'Sankey charts are ideal for displaying the material, energy and cost flows.',
       visConfig: {
         defaults: {