Changes to Update User

removed the request property agent_level_roles

removed the request property per_agent_roles

added the new CONTEXTUAL_ADMIN enum value to the request property roles/items

added the new CUSTOMER_ADMIN enum value to the request property roles/items

added the new CUSTOMER_USER enum value to the request property roles/items

added the new optional request property agent_level_roles

added the new optional request property per_agent_roles

added the new SERVICE_ACCOUNT enum value to the request property roles/items

removed the request property per_agent_roles

added the new CONTEXTUAL_EXTERNAL_STAFF_USER enum value to the request property roles/items

added the new CONTEXTUAL_INTERNAL_STAFF_USER enum value to the request property roles/items

added the new CONTEXTUAL_STAFF_USER enum value to the request property roles/items

added the new CUSTOMER_INTERNAL_USER enum value to the request property roles/items

added the new SUPER_ADMIN enum value to the request property roles/items

added the new TENANT_ADMIN enum value to the request property roles/items

added the new VISITOR enum value to the request property roles/items

endpoint added