Make BrainCo and Inspire MJCF follow MuJoCo conventions

State the upstream license and provenance for G1 and BrainCo assets

List all model folders and their upstream licenses

Add PSYONIC Ability Hand assets

Add LEAP Hand v1 assets (MuJoCo Menagerie leap_hand, MIT)

Add Fourier GR1 (GR1T2) MJCF assets converted from the official Fourier URDF (GPL-3.0)

Add PAL Robotics TALOS assets from MuJoCo Menagerie

Add Inspire RH56 hand LICENSE.md (from unitree_ros 5994d4f, BSD-3-Clause)

Add Wonik Robotics Allegro hand assets (MuJoCo Menagerie, BSD-2-Clause)

Add Inspire RH56 hand assets.zip (from unitree_ros 5994d4f, BSD-3-Clause)

Add Shadow Dexterous Hand E3M5 LICENSE.md (from MuJoCo Menagerie, Apache-2.0)

Add Shadow Dexterous Hand E3M5 assets.zip (from MuJoCo Menagerie, Apache-2.0)

Add Booster T1 assets from MuJoCo Menagerie (Apache-2.0)

Add Unitree H1 LICENSE.md (MuJoCo Menagerie unitree_h1, BSD-3-Clause)

Add Unitree H1 assets.zip (MuJoCo Menagerie unitree_h1, BSD-3-Clause)

Add BrainCo and G1 assets

initial commit