AWS VPC options and more

- `vpc_id` _(String)_ - AWS VPC id where desired build has to be created

- `subnet_id` _(String)_ - AWS VPC Subnet id where desired build has to be created

- `vpn` _(Boolean)_ - Default is false. When set to true, uses private ip address to connect to the server

- `key_name` _(String)_ - Use AWS keypair name

- `private_key_path` _(String)_ - Location of private key on the local machine, You will have to provide this in order to ssh into the created machine