Feat/lmstudio integration (#13557)

docs/docs/examples/llm/lmstudio.ipynb

...ex-integrations/llms/llama-index-llms-lmstudio/.gitignore

...a-index-integrations/llms/llama-index-llms-lmstudio/BUILD

...ndex-integrations/llms/llama-index-llms-lmstudio/Makefile

...dex-integrations/llms/llama-index-llms-lmstudio/README.md

...llama-index-llms-lmstudio/llama_index/llms/lmstudio/BUILD

...index-llms-lmstudio/llama_index/llms/lmstudio/__init__.py

...ama-index-llms-lmstudio/llama_index/llms/lmstudio/base.py

...ntegrations/llms/llama-index-llms-lmstudio/pyproject.toml

...x-integrations/llms/llama-index-llms-lmstudio/tests/BUILD

...grations/llms/llama-index-llms-lmstudio/tests/__init__.py

...lms/llama-index-llms-lmstudio/tests/test_llms_lmstudio.py