extra: Add benchmark script implemented in Python (#1298)

* Create bench.py

* Various benchmark results

* Update benchmark script with hardware name, and file checks

* Remove old benchmark results

* Add git shorthash

* Round to 2 digits on calculated floats

* Fix the header reference when sorting results

* FIx order of models

* Parse file name

* Simplify filecheck

* Improve print run print statement

* Use simplified model name

* Update benchmark_results.csv

* Process single or lists of processors and threads

* Ignore benchmark results, dont check in

* Move bench.py to extra folder

* Readme section on how to use

* Move command to correct location

* Use separate list for models that exist

* Handle subprocess error in git short hash check

* Fix filtered models list initialization

.gitignore

@@ -46,3 +46,5 @@ models/*.mlpackage
 bindings/java/.gradle/
 bindings/java/.idea/
 .idea/
+
+benchmark_results.csv