Create crewai tool create <tool> command (#1379)

This commit creates a new CLI command for scaffolding tools.

src/crewai/cli/templates/tool/README.md

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+# {{folder_name}}
+
+{{folder_name}} is a CrewAI Tool. This template is designed to help you create
+custom tools to power up your crews.
+
+## Installing
+
+Ensure you have Python >=3.10 <=3.13 installed on your system. This project
+uses [Poetry](https://python-poetry.org/) for dependency management and package
+handling, offering a seamless setup and execution experience.
+
+First, if you haven't already, install Poetry:
+
+```bash
+pip install poetry
+```
+
+Next, navigate to your project directory and install the dependencies with:
+
+```bash
+crewai install
+```
+
+## Publishing
+
+Collaborate by sharing tools within your organization, or publish them publicly
+to contribute with the community.
+
+```bash
+crewai tool publish {{tool_name}}
+```
+
+Others may install your tool in their crews running:
+
+```bash
+crewai tool install {{tool_name}}
+```
+
+## Support
+
+For support, questions, or feedback regarding the {{crew_name}} tool or CrewAI.
+
+- Visit our [documentation](https://docs.crewai.com)
+- Reach out to us through our [GitHub repository](https://github.com/joaomdmoura/crewai)
+- [Join our Discord](https://discord.com/invite/X4JWnZnxPb)
+- [Chat with our docs](https://chatg.pt/DWjSBZn)
+
+Let's create wonders together with the power and simplicity of crewAI.

src/crewai/cli/templates/tool/pyproject.toml

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+[tool.poetry]
+name = "{{folder_name}}"
+version = "0.1.0"
+description = "Power up your crews with {{folder_name}}"
+authors = ["Your Name <you@example.com>"]
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = ">=3.10,<=3.13"
+crewai = { extras = ["tools"], version = ">=0.64.0,<1.0.0" }
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

src/crewai/cli/templates/tool/src/{{folder_name}}/tool.py

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+from crewai_tools import BaseTool
+
+class {{class_name}}(BaseTool):
+    name: str = "Name of my tool"
+    description: str = "What this tool does. It's vital for effective utilization."
+
+    def _run(self, argument: str) -> str:
+        # Your tool's logic here
+        return "Tool's result"