Ease process of mapping AWS VPN config file to CloudFormation input parameters

[ckamps]

For example, provide a script to translate the AWS VPN configuration file to a standard CloudFormation parameter file and provide an example of using the CLI to create the stack.

CDK could be an even more effective means to accept the VPN config file as one of the inputs.

[ckamps]

This was partially addressed through the addition of several example CloudFormation JSON parameter files and a simple wrapper script to ease managing the data and creating stacks. See the README file for details.