* Move splitter into indexing module
* Rename post_processing module to parsers
* Migrate LLM-specific composite pipelines into llms module
This change moves the `splitters` module into `indexing` module. The `indexing` module will be created soon, to house `indexing`-related components.
This change renames `post_processing` module into `parsers` module. Post-processing is a generic term which provides very little information. In the future, we will add other extractors into the `parser` module, like Metadata extractor...
This change migrates the composite elements into `llms` module. These elements heavily assume that the internal nodes are llm-specific. As a result, migrating these elements into `llms` module will make them more discoverable, and simplify code base structure.
* add base Tool
* minor update test_tool
* update test dependency
* update test dependency
* Fix namespace conflict
* update test
* add base Agent Interface, add ReWoo Agent
* minor update
* update test
* fix typo
* remove unneeded print
* update rewoo agent
* add LLMTool
* update BaseAgent type
* add ReAct agent
* add ReAct agent
* minor update
* minor update
* minor update
* minor update
* update base reader with BaseComponent
* add splitter
* update agent and tool
* update vectorstores
* update load/save for indexing and retrieving pipeline
* update test_agent for more use-cases
* add missing dependency for test
* update test case for in memory vectorstore
* add TextSplitter to BaseComponent
* update type hint basetool
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Co-authored-by: trducng <trungduc1992@gmail.com>
