Include "From" field in Twilio Auth Provider settings

[timdiacon]

The settings for Twilio as an auth provider currently include

• Twilio Account Sid
• Twilio Auth Token
• Twilio Message Service Sid

This results in the selected phone number from the message service being displayed as the from number to the user. Twilio supports alpha numeric sender IDs by including both the message service sid and a string within the From field.

It would be great to be able to specify this From field in the auth provider settings to allow auth text messages to come from branded alphanumeric strings instead of phone numbers.