initial commit, add gello software code and instructions

gello/data_utils/format_obs.py

@@ -0,0 +1,22 @@
+import datetime
+import pickle
+from pathlib import Path
+from typing import Dict
+
+import numpy as np
+
+
+def save_frame(
+    folder: Path,
+    timestamp: datetime.datetime,
+    obs: Dict[str, np.ndarray],
+    action: np.ndarray,
+) -> None:
+    obs["control"] = action  # add action to obs
+
+    # make folder if it doesn't exist
+    folder.mkdir(exist_ok=True, parents=True)
+    recorded_file = folder / (timestamp.isoformat() + ".pkl")
+
+    with open(recorded_file, "wb") as f:
+        pickle.dump(obs, f)