replace handlebars with jinja

templates/model.hbs.old

@@ -0,0 +1,9 @@
+use {{entities_path}}::{{model_path}}::{ActiveModel, Model, Entity};
+use sea_orm::ActiveModelBehavior;
+
+#[async_trait::async_trait]
+impl ActiveModelBehavior for ActiveModel {}
+
+impl Model {}
+
+impl ActiveModel {}