Refactoring ros4hc_msgs

[moperezs]

• [Monica] 1 common Info msg for DeviceInfo.msg
• [Monica] Renamed specific header to “...Info.msg”
• [Monica] Added Mood.msg with Enum with possible moods.
• [Monica] Removed time_signal_recorded → this should be the timestamp of the ros header.
• [Monica] I would argue we only need to know when the signal was recorded, not when ROS received it and stamped the msg, in which scenario would we need this information?
• [Monica] Renamed Pose.msg to BodyLocation.msg (to comply with mHealth)
• [Monica] Changed from PoseStamped to Pose and added a header in Pose.msg (BodyLocation).
• [Monica] Removed PressureHeader.msg (same as DeviceInfo.msg).
• [Monica] Removed ElevationAngle.msg → Use PlaneAngle unit value instead (to comply with mHealth).
• [Monica] Renamed Pressure.msg to PressureMat.msg → changed msg structure
• [Monica] Changed Force.msg to geometry_msgs/Vector3.
• [Monica] Added standard headers to all signals.
• [Monica] Removed Filter.msg and added most common filters instead:
  Low pass, High Pass, Band Pass, Butterworth, Kalman, Moving average, Savitzky Golay
• [Monica] Changed some variable names, description and added enums.
• [Monica] Fixed CMake

[praanjalmishra]

Given the new structure and changes, I believe adding a README to the message org and design conventions would be helpful.

[praanjalmishra]

Suggested change

	geometry_msgs/Pose e_ankle
	geometry_msgs/Pose r_ankle

[praanjalmishra]

Suggested change

	uint32 window_length # Must be odd
	uint32 window_size # Must be odd

[praanjalmishra]

float32 deg # in radians - field name and unit contradict each other

[praanjalmishra]

Suggested change

	DEPENDENCIES std_msgs builtin_interfaces
	DEPENDENCIES std_msgs builtin_interfaces geometry_msgs