Add REST Interface to list and replenish limits

Implement a REST API that is the equivalent of the ssh "list" and
"replenish" commands detailed in the existing rate-limiter plugin
documentation. To mimic the functionality of the ssh command, keywords
are used in the endpoints and options are provided as parameters.

Feature: Issue 10304
Change-Id: I16753b26b994109b25134605f577fc688bb46060
7 files changed