Bug 1253 Updating the VNFD via ngUI breaks charms execution

 * Fixed the bug by adding the symbolic link while extracting
   the file and while doing tar.
 * The file upload size is increased upto 50MB in UI

Change-Id: Ib1de6129018f11ce863a12a60e2ffab04187e795
Signed-off-by: Barath Kumar R <barath.r@tataelxsi.co.in>
diff --git a/src/models/CommonModel.ts b/src/models/CommonModel.ts
index 627074b..fb9707a 100644
--- a/src/models/CommonModel.ts
+++ b/src/models/CommonModel.ts
@@ -152,6 +152,16 @@
     buffer: ArrayBuffer;
     header_offset?: Number;
     size?: number;
+    linkname?: string;
+    uname?: string;
+    gname?: string;
+}
+/** Interface for File Settings */
+export interface FILESETTINGS {
+    'type'?: string;
+    linkname?: string;
+    owner?: string;
+    group?: string;
 }
 /** Interface for Package information */
 export interface PACKAGEINFO {