NewService creates a SCIM service.

AAD user schema Docs: https://learn.microsoft.com/en-us/entra/identity/app-provisioning/use-scim-to-provision-users-and-groups#design-your-user-and-group-schema.

Docs: https://learn.microsoft.com/en-us/entra/identity/app-provisioning/use-scim-to-provision-users-and-groups#get-user-by-query.

Docs: https://learn.microsoft.com/en-us/entra/identity/app-provisioning/use-scim-to-provision-users-and-groups#update-user-multi-valued-properties.

Service is the API endpoint for handling SCIM requests.