Add yarn start-multi2 to allow for easier multi device testing (3 clients, 2 are linked)

config/development-2.json

@@ -0,0 +1,12 @@
+{
+  "storageProfile": "development2",
+  "localServerPort": "8083",
+  "seedNodeList": [
+    {
+      "ip": "storage.testnetseed1.loki.network",
+      "port": "38157"
+    }
+  ],
+  "openDevTools": true,
+  "defaultPublicChatServer": "https://chat-dev.lokinet.org/"
+}

package.json

@@ -14,6 +14,7 @@
     "postinstall": "electron-builder install-app-deps && rimraf node_modules/dtrace-provider",
     "start": "electron .",
     "start-multi": "NODE_APP_INSTANCE=1 electron .",
+    "start-multi2": "NODE_APP_INSTANCE=2 electron .",
     "start-prod": "NODE_ENV=production NODE_APP_INSTANCE=devprod LOKI_DEV=1 electron .",
     "start-prod-multi": "NODE_ENV=production NODE_APP_INSTANCE=devprod1 LOKI_DEV=1 electron .",
     "grunt": "grunt",