This pull request includes several changes to the pybind/pyposelib.cc file, primarily focusing on refactoring function signatures to use Camera objects directly instead of py::dict for camera parameters. Additionally, it introduces overloaded functions to maintain compatibility with the previous interface.

Refactoring for improved type safety:

• Modified estimate_absolute_pose_wrapper, refine_absolute_pose_wrapper, estimate_absolute_pose_pnpl_wrapper, and refine_absolute_pose_pnpl_wrapper to accept Camera objects directly instead of py::dict for camera parameters. [1] [2] [3] [4]
• Updated estimate_generalized_absolute_pose_wrapper and refine_generalized_absolute_pose_wrapper to use Camera objects instead of py::dict for camera parameters. [1] [2]

Maintaining backward compatibility:

• Added overloaded versions of estimate_absolute_pose_wrapper, refine_absolute_pose_wrapper, estimate_absolute_pose_pnpl_wrapper, and refine_absolute_pose_pnpl_wrapper that convert py::dict to Camera objects internally. [1] [2] [3] [4]
• Introduced overloaded functions for estimate_generalized_absolute_pose_wrapper and refine_generalized_absolute_pose_wrapper to handle py::dict conversions. [1] [2]

These changes improve type safety and maintain backward compatibility, ensuring a smooth transition to the new interface.