Refactoring Inertial Parameters & Improvements Needed

[Ipuch]

While working on refactoring the inertial parameters, I've realized and acted upon some inadequacies in how I initially coded the segments. After addressing concerns raised by @ANaaim in #96, I've managed to improve the code. Here's a brief of what I've done and what's still pending.

I've added methods to easily set inertial parameters at the segment level in #99
Example:

biomechmodel["thigh"].set_inertial_parameters(mass=..., center_of_mass=..., inertia_matrix=..., transformation_matrix_type=...)

Pending Tasks:

• Implement methods for the entire biomech model, e.g., Biomech.set_inertia_parameters(segment_name=..., ...). This method should also update the mass matrix.
• Create links between the model creator and these new methods to allow direct value specification.
• Introduce functions related to inertial parameters (from anthropometric tables) that can auto-adjust based on segment length during model creation. This will eliminate the need to manually input these values.