Users:
GET https://a.simplemdm.com/api/v1/users
- return all users and role relationship
PATCH https://a.simplemdm.com/api/v1/users/{USER_ID}/{ROLE_ID}
- update user to specific role

Roles
GET https://a.simplemdm.com/api/v1/roles
- return all roles and user relationship
POST https://a.simplemdm.com/api/v1/roles
- create a new role
PATCH https://a.simplemdm.com/api/v1/roles/{ROLE_ID}
- update existing role
DELETE https://a.simplemdm.com/api/v1/roles/{ROLE_ID}