Added new mode for Euler angles and Sensor data.

A new mode has been added to support sending both Euler angles and sensor data at the same time.
This mode can be activated by:
+ "#omrb" for Yaw Roll Pitch and raw sensor data in BINARY
+ "#omcb" for Yaw Roll Pitch and calibrated sensor data in BINARY
+ "#omrt" for Yaw Roll Pitch and raw sensor data in TEXT
+ "#omct" for Yaw Roll Pitch and calibrated sensor data in TEXT