Feature-9904: Enhancing NG-UI to enable Juju operational view dashboard

Added functions to get action list, config list and executed action list for KNF

Change-Id: Ibec764c719da5507168c474cf48fc23efbb9c846
Signed-off-by: jayaramans <selvi.j@tataelxsi.co.in>
Signed-off-by: ksaikiranr <saikiran.k@tataelxsi.co.in>