feat(repositroy): add BaseDataGenerator class and update dependencies

[MohmdFo]

• added BaseDataGenerator class in sage_tools/repository/generator/base.py to enable the generation of fake data.
• created necessary module structure with __init__.py files in sage_tools/repository and sage_tools/repository/generator.
• updated pyproject.toml to include mimesis and pillow packages as dependencies for data generation.
• modified poetry.lock to lock in the new dependencies.