Parameterize comparative benchmarks, add throughput measurements

Author: dralley

Changelog.md

@@ -121,7 +121,7 @@
 - [#393]: Added tests for reserved names (started with "xml"i) -- see <https://www.w3.org/TR/xml-names11/#xmlReserved>
 - [#363]: Add tests for `Reader::read_event_impl` to ensure that proper events generated for corresponding inputs
 - [#407]: Improved benchmark suite to cover whole-document parsing, escaping and unescaping text
-- [#418]: Parameterized macrobenchmarks, added throughput measurements via criterion
+- [#418]: Parameterized macrobenchmarks and comparative benchmarks, added throughput measurements via criterion
 
 [#8]: https://github.com/Mingun/fast-xml/pull/8
 [#9]: https://github.com/Mingun/fast-xml/pull/9