Changes to Add key roles

the roles/items request property's maxLength was decreased to 128

the roles/items request property's minLength was decreased from 3 to 1

removed the pattern ^[a-zA-Z][a-zA-Z0-9._-]*$ from the request property roles/items

the endpoint scheme security dashboard was removed from the API

the endpoint scheme security rootKey was removed from the API

the endpoint scheme security dashboard was added to the API

added the non-success response with the status 429

api operation id addRoles removed and replaced with keys.addRoles