wip: add provider generator.

app/lib/extensions/compare_extension.dart

@@ -0,0 +1,3 @@
+extension CompareExtension on Object? {
+  bool diff(other) => this != null && this != other;
+}

app/lib/extensions/sout_extension.dart

@@ -0,0 +1,12 @@
+extension SoutExtension on Object? {
+  void sout() {
+    switch (this.runtimeType) {
+      case String:
+        return print(this);
+      case Null:
+        return print(null);
+      default:
+        return print(this.toString());
+    }
+  }
+}