WIP on docs and added basic enums supports

src/Adapter/AdapterInterface.php

@@ -19,7 +19,8 @@ interface AdapterInterface {
     public function defaultEngine() : ? string;
 
     public function writableValue(/* mixed */ $value); /*: mixed*/
-
+    
+    
     /*   public function databaseName() : string;
     public function mapFieldType(FieldDefinition $field) : string;
     public function schemaTable(string $databaseName, string $tableName) /*: object|EntityCollection