update: Added Longhorn installation process and updated memory allocation for VMs

update: Added 'git' and 'vagrant' to required tools in pre-flight checks

fix: configured k3s install to use internal nic for flanel network

scripts/failue.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+
+echo "crash"
+
+sleep 1
+
+echo "bang"
+
+sleep 2
+
+echo "wallop"
+
+echo 
+echo 
+echo 
+
+echo "Houston, we have a problem"
+
+echo 
+echo 
+echo 
+
+exit 1