Investigate optimized routines for ReverseProxyHttpService matching

[jesse-gallagher]

Currently, the isXspUrl and doService methods use a test like this to identify matches:

String pathInfo = getChompedPathInfo(fullPath);
boolean match = this.targets.keySet().stream()
	.anyMatch(contextRoot -> pathInfo.equals(contextRoot) || pathInfo.startsWith(contextRoot + '/'));

While that's fine, this is a performance-sensitive bit of code, and so it might be worth it to investigate a more-optimized routine for this, like what I think Undertow does internally.