Support having multiple config files

[pandian912]

Is your feature request related to a problem? Please describe.

We work with multiple aws accounts and the ability to have multiple config files is really helpfull with each config file for each account

Describe the solution you'd like

support passing config files in command line as mvn param

Describe alternatives you've considered

Having a single config file for multiple accounts in confusing and error prone.

[enzozafra]

Hi, I can pick this up!