Allow $expand and $select with modifying requests that return a single instance in combination with return=representation to specify the response shape

Applies only to requests that return a single resource, and only to $select and $expand (and $format) 1) if $expand/$select are present, implies return=representation 2) if $expand/$select are present and return=minimal, service MUST include preference-applied if they DON'T return a result 3) if it returns a result, $expand MUST be applied if specified and MUST include at least the $selected columns 4) the service MUST NOT fail the request due to the $expand/$select; if the service cannot return a result with the appropriate $expand and $select it MUST return No Content