added vpn scripts and openvpn dependencies

i3/scripts/vpn-manager.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# VPN = list con | skip first line, if type == vpn print name | show in rofi
+VPN=$(nmcli con | awk 'NR>1 && $3 == "vpn" {print $1}' | rofi -dmenu -p "Select a vpn to (dis)connect")
+
+# if $VPN not set, exit.
+[ -z "$VPN" ] && exit
+
+# Check whether vpn is activated
+STATE=$(nmcli con show "$VPN" | grep GENERAL.STATE: | awk '{print $2}')
+
+# if state == activated
+if [ "$STATE" == "activated" ]; then
+    nmcli con down "$VPN"
+else
+    nmcli con up "$VPN"
+fi