CD crossdock benchmark set for DiffBindFR

The CD benchmark set represents a comprehensive, large-scale benchmark dataset specifically designed for cross-docking evaluations in DiffBindFR paper. It is uniquely equipped to handle a variety of cross-docking scenarios, including Apo-Holo, Holo-Holo, and AF2-Holo cross-docking. The dataset, as released, encompasses several subsets: Ensemble (including three targets: CDK2, EGFR, and FXA), ApoRef, CASF2016, GPCR-AF2, and DUDE27-HoloEns. Each cross-docking system within these subsets is comprehensively equipped with a well prepared receptor PDB file, ligand SDF file, and Mol2 file. Every system has been assigned a unique ID with the format of [Lig ID][Alt ID]_[Apo PDB ID]_[Cross-Docking ID], and Cross-Docking ID can help users identify cross-docking scenario.