[FEAT]: add python tests clients and server for olink

[dorotaphanSiili]

Main scenario should be execution of a int(int) method sync and async version

The sync version is where we send a request and wait for response.
The async version means we're sending all the requests and wait for all the responses
Test should allow configuring how many messages should be sent from how many threads.
Add to test runner scenario for method execution test or add scenario if not yet there
The latency measurements should be included as in #15

CI should be able to run those