Add "Pathway tools" to GO-CAM menu

Refs #2536

Author: kimrutherford

src/app/gocam-connections/gocam-connections.component.html

@@ -8,7 +8,7 @@
     <div class="left-menu-part left-menu-item"><span>Mega Model</span></div>
     <div class="left-menu-part left-sub-menu-item"><a routerLink="/gocam/mega-model/all">All pathways</a></div>
     <div class="left-menu-part left-sub-menu-item"><a routerLink="/gocam/mega-model/connected">Connected pathways</a></div>
-<!--    <div class="left-menu-part left-menu-item"><a routerLink="/gocam/tools">Pathway tools</a></div>-->
+    <div class="left-menu-part left-menu-item"><a routerLink="/gocam/tools">Pathway tools</a></div>
     <div class="left-menu-part left-menu-item"><a routerLink="/gocam/pathway-metrics">Pathway metrics</a></div>
     <div class="left-menu-part left-menu-item"><a routerLink="/gocam/missing-activities">Missing activities</a></div>
     <div class="left-menu-part left-menu-item"><a routerLink="/gocam/connections">Pathway joining activities</a></div>