Add VectorNDLike type aliases

[chopan050]

As mentioned in PR #4027, type aliases such as VectorNDLike and VectorNDLike_Array were necessary, because there were many functions and methods in which we can represent some direction using a tuple/list of floats.

The clearest example would be the Vector Mobject. It accepts a direction as a parameter, which was typehinted as a Point2DLike | Point3DLike because Vector2D | Vector3D can only represent a NumPy array, whereas Point2DLike | Point3DLike can also represent a tuple or list. This is inconsistent and signals us that we actually need Vector2DLike and Vector3DLike type aliases.

TODOs in follow-up PRs:

• Properly type path_ops.py, space_ops.py and three_dimensions.py, among others. Many parameters are simply typed as np.ndarray. I detected that the PathFuncType actually seems to interpolate two Point3D_Array objects, not Point3DLike.
• Create a Quaternion type alias, and maybe also Matrix3x3.
• Remove OpenGLMobject.wag(), because Mobject.wag() was deprecated and removed.
• Etc.

Links to added or changed documentation pages

Reviewer Checklist

• The PR title is descriptive enough for the changelog, and the PR is labeled correctly
• If applicable: newly added non-private functions and classes have a docstring including a short summary and a PARAMETERS section
• If applicable: newly added functions and classes are tested