cli does not support excluding related resources

[thesuavehog]

I am often using former2 to extract a few specific resource definitions from an AWS account to copy into a CloudFormation template. The web-based interface allows me to exclude any related resources (e.g. if I export an IAM Policy attached to a Role, I can skip the Role).

The CLI does not have an option to exclude related resources so it's less useful (I may as well just use the GUI if I have to go hand edit the output after anyway).

I propose an additional command line option:

   ---exclude-related            do not include related resources in the output

[thesuavehog]

note: I would try and hack this in but I can't quite figure out the workflow from the CLI and the rest of the app to identify where this would get added