initial attempt to simplify code and ui

platform/viewer/src/connectedComponents/PluginSwitch.js

@@ -1,11 +1,11 @@
 import React, { Component } from 'react';
 import PropTypes from 'prop-types';
-import { ExpandableToolMenu } from '@ohif/ui';
+import { ToolbarButton } from '@ohif/ui';
 import './PluginSwitch.css';
 
 class PluginSwitch extends Component {
   static propTypes = {
-    buttons: PropTypes.array,
+    button: PropTypes.any,
   };
 
   static defaultProps = {};
@@ -13,7 +13,9 @@ class PluginSwitch extends Component {
   render() {
     return (
       <div className="PluginSwitch">
-        <ExpandableToolMenu buttons={this.props.buttons} label={'View'} />
+        <ToolbarButton       label = "2D MPR"
+                             icon = "cube"
+                             onClick = {this.props.button.onClick} />
       </div>
     );
   }