Changes to Get permission

the permission request property's maxLength was decreased to 128

changed the pattern of the request property permission from ^[a-zA-Z][a-zA-Z0-9._-]*$ to ^[a-zA-Z0-9_:\-\.\*]+$

the permission request property's minLength was decreased from 3 to 1

the endpoint scheme security bearer was added to the API

the endpoint scheme security rootKey was removed from the API

added the non-success response with the status 429

api operation id getPermission removed and replaced with permissions.getPermission