Python stress tests repo complemeting kytos-end-to-end-tests

[viniarck]

Currently for kytos-ng project we have unit/integration and e2e tests, and on-demand manual exploratory-tests, which provide solid coverage. However, we still need a next stage of automated stress tests that could get run on demand, so a new repo that would strategically have Python test suites that would run deterministic and with a reasonable scalability. This project would incrementally getting new test suites and test cases.

This topic/project suggestion has been mentioned on prior Kytos-ng summits, but, let me also capture this on this issue for future reference when the time comes.