Checking for port used before starting server session

[svandenb-dev]

📝 Description of the feature

Checking port in case server is already running when start_session is called

💡 Steps for implementing the feature

No response

🔗 Useful links and references

No response

[hiro727]

need to add health check api and query against it to make sure the service on the specified port is indeed edb server

cc @drewm102

[drewm102]

@chenchienjacklin As per our discussion today, we should modify the behavior of launch_session(...) to be the following:

• If there is no active session and no server executable listening on the provided port, start the server executable and attach to it.
• If there is no active session and there is a server executable listening on the provided port, attach to it
• If a session already exists on the provided port, reuse it
• If a session already exists but it is on a different port than requested, throw an error