Email reroute feature

Problem/Motivation

We want to ensure that any non-production environment never ever sends email to real users and there are handy ways to test emails delivery on development environments.

Acceptance criteria

• Email Reroute module is enabled and configured for all environments
• Production environment has Email Reroute enabled, but ability to reroute emails is disabled in Email Reroute configs
• Fallback to disable emails delivery when Email Reroute is not properly configured on non production environment is implemented

Tech concept

• Install and enable Reroute email module
• Add Reroute email as dependency in domino info.yml file
• Add in composer.json of domino as required module for Reroute email module
• Module should be installed but disabled in configs by default
• For non production environments config should be overridden and rerouting functionality is enabled
• Use Features module to export configs created as a part of this issue into Domino
• Force disable email sending on non production environments if email reroute is not turned on & configured to reroute emails
• Update documentation (README file + update module's description)