Py Automapper Versions Save

Added automated code checks for different Python versions: 3.8, 3.9, 3.10, 3.11

• [@soldag] Fixed mapping of string enum types (#17)

• Fixed mapping source object or type dictionary (any type that implements __getitem__) to target object.
• Implemented CI checks and build status.

• [@g-pichler] Ability to disable deepcopy on mapping: use_deepcopy flag in map method.
• [@g-pichler] Improved error text when no spec function exists for target class.
• Updated doc comments.

• [ @g-pichler ] Added support for SQLAlchemy models mapping
• Upgraded code checking tool and improved code formatting

• Improved description for Pydantic and TortoiseORM support.
• Better type casting
• Simplified test cases

Fixed Issue #4: mapping for dictionary field

Added custom fields mapping. Fixed bugs.

Fully functioning mapper with passed code checks and unit tests

Fully working implementation with all the tests.