setSessionMark
Sets the session mark (star or flag). The default value is 0. Session marks supported by nRF Logger application: MARK_CLEAR, MARK_STAR_YELLOW, MARK_STAR_BLUE, MARK_STAR_RED, MARK_FLAG_YELLOW, MARK_FLAG_BLUE, MARK_FLAG_RED.
Parameters
session
the session created using newSession method.This may be null, than it does nothing.
mark
the new mark. MARK_CLEAR will clear the mark.