feat: generate requirements.txt from dependencies (#11810) (#12087)

* Base script to generate requirements

Dymanically picks dependency for LanguageM Comp.
Requires separate change to remove eager loading.

* Lazy load imports for language model component

Ensures that only the necessary dependencies are required.
For example, if OpenAI provider is used, it will now only
import langchain_openai, rather than requiring langchain_anthropic,
langchain_ibm, etc.

* Add backwards-compat functions

* [autofix.ci] apply automated fixes

* [autofix.ci] apply automated fixes (attempt 2/3)

* Add exception handling

* Add CLI command to create reqs

* correctly exclude langchain imports

* Add versions to reqs

* dynamically resolve provider imports for language model comp

* Lazy load imports for reqs, some ruff fixes

* Add dynamic resolves for embedding model comp

* Add install hints

* Add missing provider tests; add warnings in reqs script

* Add a few warnings and fix install hint

* update comments add logging

* Package hints, warnings, comments, tests

* [autofix.ci] apply automated fixes

* [autofix.ci] apply automated fixes (attempt 2/3)

* [autofix.ci] apply automated fixes (attempt 3/3)

* Add alias for watsonx

* Fix anthropic for basic prompt, azure mapping

* [autofix.ci] apply automated fixes

* [autofix.ci] apply automated fixes (attempt 2/3)

* ruff

* [autofix.ci] apply automated fixes

* test formatting

* ruff

* [autofix.ci] apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>