MT#21459 ncos "level" filter for api

Change-Id: I289c7c408ccfd4da46a70f42030d8dcb1804225c

lib/NGCP/Panel/Controller/API/NcosLevels.pm

@@ -38,6 +38,17 @@ sub query_params {
                 second => sub {},
             },
         },
+        {
+            param => 'level',
+            description => 'Filter for levels matching the given pattern',
+            query => {
+                first => sub {
+                    my $q = shift;
+                    { level => { like => $q } };
+                },
+                second => sub { },
+            },
+        },
     ];
 }