Added the "timeout_wait" parameter to the CLI ("--timeout-wait=").

[max-krichenbauer]

Proposed change(s)

The timeout_wait parameter was not accessible through the CLI. This is a problem when people need to debug their Unity scripts (temporarily pausing execution in the Unity Editor), or when training is performed with human-in-the-loop, as ml-agents will terminate the session after mere 60 seconds and throw a "UnityTimeOutException: The Unity environment took too long to respond."

Users should be able to set the timeout through the CLI with --timeout-wait=<seconds>

Useful links (Github issues, JIRA tickets, ML-Agents forum threads etc.)

Types of change(s)

• [x] Bug fix
• [x] New feature
• [ ] Code refactor
• [ ] Breaking change
• [ ] Documentation update
• [ ] Other (please describe)

Checklist

• [ ] Added tests that prove my fix is effective or that my feature works
• [ ] Updated the changelog (if applicable)
• [ ] Updated the documentation (if applicable)
• [ ] Updated the migration guide (if applicable)

Other comments

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