Add/aws profile option

[simonemazzoni]

Hello, I added a cli argument to let users to pass the name of the awscli configured profile to use when running the command.
I think it is very useful especially on machines, like mine, where there are multiple aws configs configured.

Please let me know if in some way the style of the update doesn't match your own style, and feel free to update it yourself. I'm very new to go language 😄

Thanks,
Simone

[cdimitroulas]

👍 for this configuration option! Would be great to get this into the tool :)

Perhaps the ability to use the AWS_PROFILE env variable instead of a cli flag would be nice too