Expose Quorum to host machine for testing

* Use well known IP address
* Enable RPC with all APIs for all nodes

Vagrantfile

@@ -1,6 +1,7 @@
 Vagrant.configure(2) do |config|
   config.vm.box = "ubuntu/xenial64"
   config.vm.provision :shell, path: "vagrant/bootstrap.sh"
+  config.vm.network :private_network, ip: "192.168.44.9"
   config.vm.provider "virtualbox" do |v|
     v.memory = 4096
   end