Animalai

Added
- Agent Freezing Parameter.

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Changed
- Enhanced agent handling (stop and acceleration).
- Added new objects, spawners, signs, goal types.
- Updated object graphics.
- Released Unity Environment.
- Upgraded to Mlagents 2.1.0-exp.1 (ml-agents python version 0.27.0).

Fixed
- Minor bug fixes.

Notes
- Agents trained on earlier versions may perform differently due to control and graphic changes.

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Added
- Support for multiple arenas in a single YAML file.

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Changed
- Introduced low-quality version for improved fps.

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Fixed
- UI scaling issues.
- Cardbox objects spawning at incorrect sizes.
- Environment timeout issue.

Changed
- Enhanced Death Zone shader for varying sizes.

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Added
- Health-based system.
- Basic Gym Wrapper.
- Basic heuristic agent for benchmarking and testing.

Fixed
- Environment reset bug during training.
- Added frameskip setting (DecisionPeriod) for environment instantiation.

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