feat(project): Initialize UR16e pick and place project

This is the initial commit for the UR16e pick and place project using Unity ML-Agents.

This project is built upon a clone of the standard Unity ML-Agents repository and introduces a specific implementation for training a UR16e robotic arm.

Key additions in this commit:
- UR16Agent: A new ML-Agent script (`UR16Agent.cs`)  designed for the pick and place task. It defines the agent's observations, actions, and reward structure.
- Unity Scene: The `UR16 agents.unity` scene, which contains the robot, target objects, and environment setup for training.
- Documentation: Multilingual README files (`README.md` for English, `README.ko.md` for Korean) explaining the project's purpose, structure, and how to run it.

Author: henry2craftman

Project/.gitignore

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