Add mailu-front parser/scenario/collection

[jijins1]

Add support for mailu-front

[LaurenceJJones]

Hey 👋🏻

Thank you for opening a pull request!

The test seem broken and not all the contents are in your commits, the parser/scenarios are under your display name and not your actual github username which will break once we merge as we use that so people can go to your profile.

added a comment on leaving the debug to true