Add most (all?) operators

src/main/java/com/kingsrook/qqq/backend/core/model/actions/QCriteriaOperator.java

@@ -8,5 +8,18 @@ public enum QCriteriaOperator
 {
    EQUALS,
    NOT_EQUALS,
-   IN
+   IN,
+   NOT_IN,
+   STARTS_WITH,
+   ENDS_WITH,
+   CONTAINS,
+   NOT_STARTS_WITH,
+   NOT_ENDS_WITH,
+   NOT_CONTAINS,
+   LESS_THAN,
+   LESS_THAN_OR_EQUALS,
+   GREATER_THAN,
+   GREATER_THAN_OR_EQUALS,
+   IS_BLANK,
+   IS_NOT_BLANK
 }