[b1_z1] Created a b1_z1 robot

python/example_robot_data/robots_loader.py

@@ -189,6 +189,11 @@ class Z1Loader(RobotLoader):
     srdf_filename = "z1.srdf"
     ref_posture = "arm_up"
 
+class B1Z1Loader(B1Loader):
+    urdf_filename = "b1-z1.urdf"
+    srdf_filename = "b1-z1.srdf"
+    ref_posture = "standing_with_arm_home"
+
 class ANYmalLoader(RobotLoader):
     path = "anymal_b_simple_description"
     urdf_filename = "anymal.urdf"
@@ -525,6 +530,7 @@ ROBOTS = {
     "go1": Go1Loader,
     "a1": A1Loader,
     "z1": Z1Loader,
+    "b1_z1": B1Z1Loader,
     "anymal": ANYmalLoader,
     "anymal_c": ANYmalCLoader,
     "anymal_kinova": ANYmalKinovaLoader,