AWS CloudFormation Template Generator

Work in Progress

The purpose is to programmatically generate templates for AWS CloudFormation

Here is a quick example of how it should work when operational (i.e. version >= 0.1.0)

```rust use cumulus::ec2; use cumulus::Template;

fn main() { let proxy1 = ec2::Instance::new().instance_type("s2.micro"); let proxy2 = proxy1.clone();

let template = Template::new()
    .description("Proxy Farm")
    .resource("proxy1", proxy1)
    .resource("proxy2", proxy2)
    .json_pretty();

println!("{}", template);

} ```