Add real robot devices and scripts to control real robot (#288)

Co-authored-by: Simon Alibert <alibert.sim@gmail.com>

lerobot/configs/env/koch_real.yaml

@@ -0,0 +1,10 @@
+# @package _global_
+
+fps: 30
+
+env:
+  name: real_world
+  task: null
+  state_dim: 6
+  action_dim: 6
+  fps: ${fps}