feat(devices): add lazy loading for 3rd party robots cameras and teleoperators (#2123)

* feat(devices): add lazy loading for 3rd party robots cameras and teleoperators

Co-authored-by: Darko Lukić <lukicdarkoo@gmail.com>

* feat(devices): load device class based on assumptions in naming

* docs(devices): instructions for using 3rd party devices

* docs: address review feedback

* chore(docs): add example for 3rd party devices

---------

Co-authored-by: Darko Lukić <lukicdarkoo@gmail.com>

src/lerobot/teleoperators/utils.py

@@ -13,6 +13,9 @@
 # limitations under the License.
 
 from enum import Enum
+from typing import cast
+
+from lerobot.utils.import_utils import make_device_from_device_class
 
 from .config import TeleoperatorConfig
 from .teleoperator import Teleoperator
@@ -29,6 +32,7 @@ class TeleopEvents(Enum):
 
 
 def make_teleoperator_from_config(config: TeleoperatorConfig) -> Teleoperator:
+    # TODO(Steven): Consider just using the make_device_from_device_class for all types
     if config.type == "keyboard":
         from .keyboard import KeyboardTeleop
 
@@ -82,4 +86,7 @@ def make_teleoperator_from_config(config: TeleoperatorConfig) -> Teleoperator:
 
         return Reachy2Teleoperator(config)
     else:
-        raise ValueError(config.type)
+        try:
+            return cast(Teleoperator, make_device_from_device_class(config))
+        except Exception as e:
+            raise ValueError(f"Error creating robot with config {config}: {e}") from e