Add more unit tests

[AsakusaRinne]

Add more unit tests to ensure the stability when publishing a release.

• semantic-kernel
• kernel-memory
• running with non-English languages
• Running with an extra model (there're many models supported by llama.cpp, LLaMA is only one of them)
• Benchmark

I'll deal with them one-by-one.

[github-actions]

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