BradyAJohnston/MolecularNodes: MolecularNodes v2.1.0 for Blender 3.4.X

A number of bug fixes and minor improvements. Only major addition is the ability to specify custom string selections when importing via MDAnalysis.

• Proper support for Fields for ribbon width, enabling 'licorice' representation amoung others
• Tooltips documentation for each of the custom node groups that can be added in Geometry Nodes
• More selection nodes for distance, XYZ slice and whole residues.
• Custom selections using a string when importing via MDAnalysis #123
• Added option to disable interpolation of atom positions between frames
• Added node for animating any field between frames of a trajectory (no fields currently added on import, but used in the new Aniamte Frames backend)
• UVs are now available for the ribbon mesh style, idea from ErikMarklund and implemented by quellenform

• Error when defaulting to connect_via_distance() when importing with 'Find Bonds' enabled
• Adding of a color node which was mis-labelled and couldn't be added
• Non-.gro topology files were failling to add vdw_radii attribute #124
• Remove use of np.int which is now deprecated and was causing errors when linking python on M1 Mac
• Attributes now available on ribbon mesh which are sampled from backbone
• Changed starting material to be appended instead of created, which should avoid duplication of material.