files moved to src folder

added flutter_hooks support with example

packages/fl_query/lib/src/utils.dart

@@ -0,0 +1,43 @@
+import 'package:fl_query/src/query.dart';
+import 'package:uuid/uuid.dart';
+
+Future<void> callQueryListeners<T>(Set<QueryListener<T>> listeners, T data) {
+  return Future.wait(listeners.map(
+    (listener) => Future.value(listener(data)),
+  ));
+  // for (final listener in listeners) {
+  //   await listener(data);
+  // }
+}
+
+const uuid = Uuid();
+
+bool isShallowEqualList(List list1, List list2) {
+  return list1.asMap().entries.every((l1Entry) {
+    return l1Entry.value == list2[l1Entry.key];
+  });
+}
+
+bool isShallowEqualSet(Set list1, Set list2) {
+  return isShallowEqualList(list1.toList(), list2.toList());
+}
+
+bool isShallowEqualMap(Map list1, Map list2) {
+  return list1.entries.every((l1Entry) {
+    return l1Entry.value == list2[l1Entry.key];
+  });
+}
+
+bool isShallowEqual(Object obj1, Object obj2) {
+  if (obj1 is List && obj2 is List) {
+    return isShallowEqualList(obj1, obj2);
+  } else if (obj1 is Set && obj2 is Set) {
+    return isShallowEqualSet(obj1, obj2);
+  } else if (obj1 is Map && obj2 is Map) {
+    return isShallowEqualMap(obj1, obj2);
+  } else {
+    // for other types basically comparing references for non primitive
+    // types. And primitives are always compared by value
+    return obj1 == obj2;
+  }
+}