B-48287 Instrument Filter: URI Normalization

Building on Damien's branch from here:
https://github.com/dmnjohns/repose/tree/uri-normalization-metrics

Added configs and code for the jmx test for the URI Normalization filter.
Re-uses the ability to use dynamic ports and apply configs with variable substitution at run-time from the branch for "B-48286 Instrument Filter: Header Normalization".