Add asserts while inserting/erasing from client maps in IFMapServer.
Add asserts while inserting/erasing from client maps in IFMapServer.

Add asserts while inserting/erasing from client maps in IFMapServer

Change-Id: Ib105008246166a574d4b86bd8251f9a40832673d
Closes-Bug: #1577503
(cherry picked from commit 37853af8c03add214fede9e9b96c79111fa1dcc0)

eonpatapon/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,codilime/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,codilime/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller