Incorrect user message when profile name does not exist in local config

[blakeca00]

AUTH fail msg is produced when a profile name doesn't exist in local profile:

[ AUTH ]: Authenication Failed to AWS Account for user dev1

instead, msg should state that user (dev1) is not profile in the local awscli config.

[blakeca00]

Logic:

1. Search for --user-name in config.sections()
2. If exists, then exists in local awscli profile >> rotate as normal
3. If NOT exist in config.sections(), stdout msg to user, write new keyset to disk in /tmp if BACKUP_LOCATION not set