Add support for Active Record Encryption in fields

Feature

Active Record Encryption enables developers to easily hide specific bits of information behind encryption.

We should enable an easy way to display those fields after the record is displayed.

Workflow:

• this should be a new field
• The user loads the record in any view
• Avo shows the record with asteriscs (****)
• the user get's a button to reveal the value
• Avo makes a call to the server to get the real value and display it to the user
• we should take care on forms to not submit the easteriscs and overwrite the values in the DB

Current workarounds

Custom fields.