BradyAJohnston/MolecularNodes: Molecular Nodes v2.0.0 for Blender 3.4.X

I never really released a v1.0 of these nodes, but given this was a complete re-write and is incompatible with earlier versions of Molecular Nodes, I figured I would try to make that incompatibility obvious by labelling this as v2.0. Major Changes A complete rewrite of Molecular Nodes, from the ground up. The underlying python libraries have changed, along with most of the nodes and internal attribute names so this will be a breaking change with previous versions. Remove usage of Atomium and switched to Biotite for most internal structural file parsing Removed reliance upon Serpens to build the addon. Can now be developed by anybody without the requirements of additional Blender addons. Aspects of the addon can now have changes tracked properly by git, rather than inside a binary .blend Serpens file. Now also allows easier and clearer contributions from others who wish to contribute Custom node trees still remain opaque to git unfortunately Attributes are now created and stored on the molecular model itself, removing the need for properties models that store the data XYZ positions. Makes the import process clearer, more robust and more easily expandable. Bond information is available by default as edges of the mesh along with bond types Improve MDAnalysis installation and usage internally Expose operators and functions to Blender Python console to enable user scripting with the addon import MolecularNodes as mn # to fetch structures from the protein data bank struc_list = ['4ozs', '1xi4', '6n2y'] for pdb in struc_list: mn.load.molecule_rcsb(pdb, starting_style = 1) # to open a local structure file mn.load.molecule_local('file_path_here.pdb', 'SomeMoleculeName', starting_style = 2) Current Limitations Due the nature of a complete rewrite, not everything that was in previous versions has been ported over. The new version of Molecular Nodes also commits to using new nodes introduced in Blender 3.4 and thus most nodes are incompatible with earlier versions of Blender. Missing Nodes Some nodes have still not been ported from the old Molecular Nodes, such as the Amino Acid Wiggle and the Amino Acid to curve nodes. Membranes have also not yet been ported. Limited Import Functionality While the code for importing structures is now more robust, it requires more effort to write and so not as many structure formats are currently supported. PDB / PDBx & mmCIF are supported as well as mmtf via Biotite. The MD formats via MDAnalysis should remain unchanged and still supported. The .mol and other more chemistry-specific formats are yet to have thorough support and testing, but I welcome pull requests from anyone who would be interested in working on it