Test empty parameters' function calling cases

[samchon]

This pull request includes various changes to the examples/function-calling/schemas/llama.sale.schema.json file and adds new test cases for function calling with different language models. The most important changes include reordering JSON schema properties, adding new test cases for function calling with ChatGPT, Claude, Gemini, and Llama, and updating the Llama model version.

Changes to JSON schema:

• examples/function-calling/schemas/llama.sale.schema.json: Reordered the required property to maintain consistency in the schema. [1] [2] [3]

New test cases for function calling:

• test/features/llm/chatgpt/test_chatgpt_function_calling_empty.ts: Added a new test case for ChatGPT function calling to validate the print function call.
• test/features/llm/claude/test_claude_function_calling_empty.ts: Added a new test case for Claude function calling to validate the print function call.
• test/features/llm/gemini/test_gemini_function_calling_empty.ts: Added a new test case for Gemini function calling to validate the print function call.
• test/features/llm/llama/test_llama_function_calling_empty.ts: Added a new test case for Llama function calling to validate the print function call.

Model version update:

• test/utils/LlamaFunctionCaller.ts: Updated the Llama model version from llama3.2-90b-vision to llama3.3-70b.

[samchon]

Test OK.