Extend client API

[zayfod]

PyCozmo provides access to most low-level communication messages, part of the Cozmo protocol, as described here: https://github.com/zayfod/pycozmo/blob/master/pycozmo/protocol_declaration.py

Only a small portion of the low-level functionality is exposed through the Client class API.

The below methods, properties, and events available in the Anki Python Cozmo SDK can easily be added.

Methods:

• drive_off_charger_contacts()
• drive_straight()
• turn_in_place()
• backup_onto_charger()
• drive_wheel_motors()
• drive_wheels()
• enable_stop_on_cliff()
• move_head()
• move_lift()
• set_manual_exposure()
• set_robot_volume()
• turn_in_place()

Properties:

• accelerometer
• are_wheels_moving
• battery_voltage
• drive_off_charger_on_connect
• gyro
• is_anim_buffer_full
• is_charging
• is_cliff_detected
• is_falling
• is_head_in_pos
• is_lift_in_pos
• is_localized
• is_moving
• is_on_charger
• is_pathing
• is_picked_up
• last_image_robot_timestamp
• left_wheel_speed
• right_wheel_speed
• lift_angle
• lift_height
• lift_position
• lift_ratio
• pose
• pose_angle
• pose_pitch
• serial

Events:

• EvtObjectAppeared
• EvtObjectConnectChanged
• EvtObjectConnected
• EvtObjectDisappeared
• EvtObjectMoving
• EvtObjectMovingStarted
• EvtObjectMovingStopped
• EvtObjectTapped