get https://example.com/setup/v1/locations//email/templates
Returns a list of email templates that may be customized
If the template has been customized, the customized property is true.
The scope parameter indicates if the email template has been customized
at Business Location level or Company level.
Only when querying the primary business location will company scope
customized templates display. Otherwise, the scope shows if a template has been customized
at the business location level.