pybricks.common.Motor: Document compatibility.

Control methods are not available on Move Hub.

Fixes: https://github.com/pybricks/pybricks-api/issues/106

doc/common/extensions/requirements-static.py

@@ -11,6 +11,7 @@ FEATURES_SMALL = set()
 # Medium feature set.
 FEATURES_MEDIUM = FEATURES_SMALL | {
     "pybricks-geometry",
+    "pybricks-common-control",
     "pybricks-iodevices",
     "stm32-extra",
     "stm32-float",

doc/main/pupdevices/motor.rst

@@ -64,14 +64,24 @@ Motors with rotation sensors
 
     .. rubric:: Control settings
 
+    .. pybricks-requirements:: pybricks-common-control
+
     .. automethod:: pybricks.pupdevices.Motor.control.limits
 
+    .. pybricks-requirements:: pybricks-common-control
+
     .. automethod:: pybricks.pupdevices.Motor.control.pid
 
+    .. pybricks-requirements:: pybricks-common-control
+
     .. automethod:: pybricks.pupdevices.Motor.control.target_tolerances
 
+    .. pybricks-requirements:: pybricks-common-control
+
     .. automethod:: pybricks.pupdevices.Motor.control.stall_tolerances
 
+    .. pybricks-requirements:: pybricks-common-control
+
     .. attribute:: control.scale
 
         Number of degrees that the motor turns to complete one degree at the