Function realsense_sys::rs2_log

pub unsafe extern "C" fn rs2_log(
    severity: rs2_log_severity, 
    message: *const c_char, 
    error: *mut *mut rs2_error
)

Add custom message into librealsense log \param[in] severity The log level for the message to be written under \param[in] message Message to be logged \param[out] error if non-null, receives any error that occurs during this call, otherwise, errors are ignored