Initial snapshot: hand motion pipeline (Dyn-HaMR + dex-retargeting + SPIDER)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

third_party/Dyn-HaMR/third-party/DROID-SLAM/tools/download_sample_data.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+mkdir -p data && cd data
+
+
+gdown https://drive.google.com/uc?id=1AlfhZnGmlsKWGcNHFB1i8i8Jzn4VHB15
+unzip abandonedfactory.zip
+rm abandonedfactory.zip
+
+gdown https://drive.google.com/uc?id=0B-ePgl6HF260NzQySklGdXZyQzA
+unzip Barn.zip
+rm Barn.zip
+
+wget https://www.eth3d.net/data/slam/datasets/sfm_bench_mono.zip
+unzip sfm_bench_mono.zip
+rm sfm_bench_mono.zip
+
+wget https://vision.in.tum.de/rgbd/dataset/freiburg3/rgbd_dataset_freiburg3_cabinet.tgz
+tar -zxvf rgbd_dataset_freiburg3_cabinet.tgz
+rm rgbd_dataset_freiburg3_cabinet.tgz
+
+wget http://robotics.ethz.ch/~asl-datasets/ijrr_euroc_mav_dataset/machine_hall/MH_03_medium/MH_03_medium.zip
+unzip MH_03_medium.zip
+rm MH_03_medium.zip
+
+cd ..