UnstructuredReader enhancements.

[Falven]

Description

Several enhancements to the UnstructuredReader.

• Allow kwargs to unstructured so you can use any of the features of the lib.
• Generation of deterministic ids using element.id_to_hash as an option for document lifecyle management
• Option to exclude any of the metadata keys from final result
• Use native element.metadata.to_dict() transformation rather than hard-coded metadata serialization
• Cleaned up constructor a bit and added from_api helper.

New Package?

Version Bump?

Did I bump the version in the pyproject.toml file of the package I am updating? (Except for the llama-index-core package)

• Yes
• No (Not sure where)

Type of Change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• I stared at the code and made sure it makes sense
• I ran the code on my own project

Suggested Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I ran make format; make lint to appease the lint gods

[anoopshrma]

You'll have to bump the version also for this to reflect in pypi. You can do that by upgrading the version mentioned here:

llama_index/llama-index-integrations/readers/llama-index-readers-file/pyproject.toml

Line 54 in a26682e

version = "0.1.25"