Store all Response examples by name

Allow use multiple times the @response decorator with the same status and different examples.

packages/cli/src/metadataGeneration/methodGenerator.ts

@@ -189,17 +189,18 @@ export class MethodGenerator {
   }
 
   private getMethodResponses(): Tsoa.Response[] {
+    const examplesByName = {};
     const decorators = this.getDecoratorsByIdentifier(this.node, 'Response');
     if (!decorators || !decorators.length) {
       return [];
     }
-
+    
     return decorators.map(decorator => {
       const [name, description, example, produces] = getDecoratorValues(decorator, this.current.typeChecker);
-
+      examplesByName[name] = examplesByName[name] ? [...examplesByName[name], example] : [example];
       return {
         description: description || '',
-        examples: example === undefined ? undefined : [example],
+        examples: examplesByName[name] || undefined,
         name: name || '200',
         produces: this.getProducesAdapter(produces),
         schema: this.getSchemaFromDecorator(decorator, 0),