VOL-2359 - add NE option

Change-Id: Id921cc4dd7899a362ce54c659d1454994676c8d3
diff --git a/pkg/filter/filter.go b/pkg/filter/filter.go
index 4ced633..d78a21a 100644
--- a/pkg/filter/filter.go
+++ b/pkg/filter/filter.go
@@ -132,6 +132,11 @@
 			if fmt.Sprintf("%v", field) != v.Value {
 				return false
 			}
+		case NE:
+			// This seems to work for most comparisons
+			if fmt.Sprintf("%v", field) == v.Value {
+				return false
+			}
 		default:
 			// For unsupported operations, always pass
 		}