### Description
Move over all fsspec connectors to the new framework
Variety of bug fixes found and fixed in this PR as well:
* custom json mixin being used for the enhanced dataclass would break if
typing was quoted. That was fixed. A check was also added to the
enhanced dataclass to prevent `InitVar` from being used in the root
dataclass since this breaks serialization.
* hashing for partitioner was using the filename of the raw file being
partitioned rather than the file name of the file data generated from
indexing. This means that mutliple files could result in the same
partition hash when recursive flag is passed in. This was updated to use
the file data file name instead.
---------
Co-authored-by: ryannikolaidis <1208590+ryannikolaidis@users.noreply.github.com>
Co-authored-by: rbiseck3 <rbiseck3@users.noreply.github.com>
Part two of: https://github.com/Unstructured-IO/unstructured/pull/2842
Main changes compared to part one:
* hash computation includes element's sequence number on page, page
number, document filename and its text
* there are more test for deterministic behavior of IDs returned by
partitioning functions + their uniqueness (guaranteed at the document
level, and high probability across multiple documents)
This PR addresses the following issue:
https://github.com/Unstructured-IO/unstructured/issues/2461
Adds source connector for SFTP which uses fsspec and paramiko via
fsspec. Paramiko is the standard sftp package for python used in pysftp
etc...
```
--username foo \
--password bar \
--remote-url sftp://localhost:47474/upload/
```
Will only download a specifically requested file if it has an extension.
(i.e. `--remote-url sftp://localhost:47474/upload/bob.zip`) It will
treat any other remote_url as a folder path. This is intentional.
---------
Co-authored-by: potter-potter <david.potter@gmail.com>
