send emails from pantheon

We need to set things up so we can send emails from pantheon. This requires a service account to authenticate and connect to and organizational accounts to use as the FROM address

SMTP module configuration from ASC

smtp_on: true
smtp_host: smtp.service.osu.edu
smtp_hostbackup: ''
smtp_port: '587'
smtp_protocol: tls
smtp_username: 'REDACTED'
smtp_password: 'REDACTED'
smtp_from: ''
smtp_fromname: ''
smtp_client_hostname: ''
smtp_client_helo: ''
smtp_allowhtml: '1'
smtp_test_address: ''
smtp_debugging: false
prev_mail_system: php_mail
smtp_timeout: 30