Add LocalFileManagerDriver

[dylanholmes]

Changes:

• Add BaseFileManagerDriver
• Add LocalFileManagerDriver
• Remove all existing fields from FileManager.
• Add FileManager.file_manager_driver
• Added optional BaseLoader.encoding field. This allows the LocalFileManagerDriver to save files with the same encoding as is used for loading them. This is possible without modifying BaseLoader, but not doing so would be more fragile and awkward.
• Add BlobLoader

[dylanholmes]

Reverted to draft to make some changes I realized I needed+wanted to make while testing:

• LocalFileManagerDriver. load_file needs to read in the file after the changes rebased that removed filepaths from the source of the loaders.
• I want to move the usage of the loaders into the BaseFileManager, then have the subclasses implement a method for that reads/writes bytes only.

[dylanholmes]

This import alias is used to resolve a circular dependency between the drivers and loaders illustrated by the error shown below. Would be nice to have a more elegant solution, but I haven't found one yet.

_________________________________________________________ ERROR collecting tests/unit/loaders/test_blob_loader.py __________________________________________________________
ImportError while importing test module '/Users/dylan/Documents/griptape/tests/unit/loaders/test_blob_loader.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/opt/homebrew/Cellar/python@3.12/3.12.2_1/Frameworks/Python.framework/Versions/3.12/lib/python3.12/importlib/__init__.py:90: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
tests/unit/loaders/test_blob_loader.py:2: in <module>
    from griptape.loaders.blob_loader import BlobLoader
griptape/loaders/__init__.py:2: in <module>
    from .base_text_loader import BaseTextLoader
griptape/loaders/base_text_loader.py:11: in <module>
    from griptape.drivers import BaseEmbeddingDriver
griptape/drivers/__init__.py:96: in <module>
    from .file_manager.base_file_manager_driver import BaseFileManagerDriver
griptape/drivers/file_manager/base_file_manager_driver.py:6: in <module>
    from griptape.loaders import BaseLoader, BlobLoader, CsvLoader, ImageLoader, PdfLoader, TextLoader
E   ImportError: cannot import name 'BlobLoader' from partially initialized module 'griptape.loaders' (most likely due to a circular import) (/Users/dylan/Documents/griptape/griptape/loaders/__init__.py)

[collindutter]

The griptape.drivers module is becoming quite large and causing more and more circular dependency issues as we integrate Drivers in different parts of the framework. I guess if this works it works.

[vasinov]

Looks good!