New: Identify indexers that are already setup in add list

frontend/src/Indexer/Add/SelectIndexerRowConnector.js

@@ -0,0 +1,18 @@
+
+import { connect } from 'react-redux';
+import { createSelector } from 'reselect';
+import createExistingIndexerSelector from 'Store/Selectors/createExistingIndexerSelector';
+import SelectIndexerRow from './SelectIndexerRow';
+
+function createMapStateToProps() {
+  return createSelector(
+    createExistingIndexerSelector(),
+    (isExistingIndexer, dimensions) => {
+      return {
+        isExistingIndexer
+      };
+    }
+  );
+}
+
+export default connect(createMapStateToProps)(SelectIndexerRow);