Add metadata.json

metadata.json

@@ -0,0 +1,15 @@
+{
+  "READY": true,
+  "name": "ESOL",
+  "task": "regression",
+  "cat_idx": [],
+  "num_samples": 1128,
+  "num_features": 1856,
+  "description": "Water solubility data (log solubility in mols per litre) for common organic small molecules. Features: Morgan fingerprints (radius=2).",
+  "source": "MoleculeNet (https://moleculenet.org) \u2014 loaded via DeepChem.",
+  "label": "Drug Discovery",
+  "sub_labels": [
+    "Physical Chemistry",
+    "Fingerprint"
+  ]
+}