Add feature to export quantum application archives (#32)

* Add button to export QAAs

* Add data formats for image and QAA export

* Update tests

* Add empty check to options parameter

* Fix export test

* Avoid exception until QAA export is implemented

* Store workflow model in QAA

* Fix test case

* Start moving modeling extension to client

* Remove unused import

* Move quantum4bpmn JSON to resource folder in client

* Move QuantME utilities from plugin to core

* Move constants from plugin to core

* Move layouter to core

* Update package--lock files

* Start moving deployment functionality to core

* Move binding and deployment utils

* Move images to core

* Move attribute checker to core

* Move QuantMEMatcher

* Store config with active modeler

* Remove unnecassary local config in config plugin

* Download CSARs and add them to QAA on export

* Avoid duplicate export dialog for QAAs

* Add notification for the user about pending QAA export

* Update package-lock after final build

app/lib/menu/menu-builder.js

@@ -215,13 +215,23 @@ class MenuBuilder {
 
   appendExportAs() {
     const exportState = this.options.state.exportAs;
-    const enabled = exportState && exportState.length > 0;
 
+    const imageExportEnabled = exportState && exportState.length > 0;
     this.menu.append(new MenuItem({
       label: 'Export As Image',
-      enabled: enabled,
+      enabled: imageExportEnabled,
       click: function() {
-        app.emit('menu:action', 'export-as', exportState || []);
+        app.emit('menu:action', 'export-as', exportState.filter(state => state !== 'zip') || []);
+      }
+    }));
+
+    const qaaExportEnabled = exportState && exportState.filter(state => state === 'zip').length > 0;
+    console.log('QAA export enabled...' + qaaExportEnabled);
+    this.menu.append(new MenuItem({
+      label: 'Export As QAA',
+      enabled: qaaExportEnabled,
+      click: function() {
+        app.emit('menu:action', 'export-as', 'zip');
       }
     }));