add functions to generate normals, tangents, and bitangents (binormals)

[ScanMountGoat]

This will require updating geometry_tools.

• tangents
• bitangents
• normals

[ScanMountGoat]

Potential usage example for ssbh_data (and ssbh_data_py). It might be nice for the function to handle different vector lengths automatically.

let normals: Vec<[f32; 4]> = calculate_normals(&data.positions[0].data, &data.vertex_indices)?;