bugfix for operations screen

Add Operation Button is missing in Service management
committing fix by Akiva

Issue-ID: SDC-2843
Signed-off-by: ilanap <ilanap@amdocs.com>
Change-Id: I9a6c89e45ea425eb9abf827906562e14a39cf1ff
diff --git a/catalog-ui/src/app/utils/constants.ts b/catalog-ui/src/app/utils/constants.ts
index 8ad8db2..738b4d1 100644
--- a/catalog-ui/src/app/utils/constants.ts
+++ b/catalog-ui/src/app/utils/constants.ts
@@ -412,3 +412,10 @@
     static GROUP_TAGGING = "group-tagging";
     static GROUP_TAGGING_HOVER= "group-tagging-hover";
 }
+
+export class DROPDOWN_OPTION_TYPE {
+    static SIMPLE = "Simple";
+    static HEADER = "Header";
+    static DISABLE = "Disable";
+    static HORIZONTAL_LINE = "HorizontalLine";
+}