Fix Bug 2296: Newly Created Ns should come first in NG-UI

	- Sorted the list using created Date in descending order
        - Incorrect Information in "Expires in " section of Admin user :
	  Changed it to N/A
	- VIM Resource Overview: RAM Value should be rounded off :
	  Rounded off the value to 2 decimal points
	- Fixed the key issue in topology

Change-Id: I634aee0b4e4540386c5108232746f56959bcc838
Signed-off-by: SANDHYA.JS <sandhya.j@tataelxsi.co.in>
diff --git a/src/models/NSInstanceModel.ts b/src/models/NSInstanceModel.ts
index 12ce977..5039cc5 100644
--- a/src/models/NSInstanceModel.ts
+++ b/src/models/NSInstanceModel.ts
@@ -49,6 +49,8 @@
     additionalParamsForNs: AdditionalParamForN;
     _id?: string;
     vcaStatus?: object;
+    startTime?: string;
+    'create-time'?: string;
 }
 
 /** Interface for Admin */
@@ -266,6 +268,7 @@
     operationParams?: OPERATIONPARAMS;
     'nsd-id': string;
     constituent: string[];
+    'create-time'?: string;
 }
 
 /** Interface for the operationparams */