Resolve inline models before preprocess (OpenAPITools#1761)

Author: ackintosh

modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultGenerator.java

@@ -878,13 +878,13 @@ public List<File> generate() {
             throw new RuntimeException("missing config!");
         }
 
-        configureGeneratorProperties();
-        configureOpenAPIInfo();
-
         // resolve inline models
         InlineModelResolver inlineModelResolver = new InlineModelResolver();
         inlineModelResolver.flatten(openAPI);
 
+        configureGeneratorProperties();
+        configureOpenAPIInfo();
+
         List<File> files = new ArrayList<File>();
         // models
         List<String> filteredSchemas = ModelUtils.getSchemasUsedOnlyInFormParam(openAPI);