RESTCONF Extensions to Support List Pagination

This document defines a mapping of the list pagination mechanism defined in [I-D.ietf-netconf-list-pagination] to RESTCONF [RFC8040]. This document updates RFC 8040, to declare "list" and "leaf-list" as valid resource targets for the RESTCONF GET operation, to define GET query parameters necessary for list pagination, and to define a media-type for XML-based lists.