In order to support the current filtering in the alpha app, we need to add filtering to the current list of users endpoint /api/get-users.

We also need a way to set users as mentors, currently all users are equal but we need to returns mentors only, maybe adding another field to the user model will do the trick mentor: true | false.

The endpoint should filter by:

• TECHNOLOGY
• COUNTRY
• NAME
• LANGUAGE (English, Spanish, Japanese, etc....)