Adding the 'resources' property to AlexaObject (#18210)

* Adding the 'resources' property to AlexaObject

* Updating alexa-sdk tests

* Adding myself to credits for alexa-sdk

types/alexa-sdk/alexa-sdk-tests.ts

@@ -2,6 +2,7 @@ import * as Alexa from "alexa-sdk";
 
 const handler = (event: Alexa.RequestBody<Alexa.Request>, context: Alexa.Context, callback: () => void) => {
     let alexa = Alexa.handler(event, context);
+    alexa.resources = {};
     alexa.registerHandlers(handlers);
     alexa.execute();
 };

types/alexa-sdk/index.d.ts

@@ -3,6 +3,7 @@
 // Definitions by:  Pete Beegle <https://github.com/petebeegle>
 //                  Huw <https://github.com/hoo29>
 //                  pascalwhoop <https://github.com/pascalwhoop>
+//                  Ben <https://github.com/blforce>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.2
 
@@ -20,6 +21,7 @@ export interface AlexaObject<T> extends Handler<T> {
     state: any;
     appId: any;
     response: any;
+    resources: any;
     dynamoDBTableName: any;
     saveBeforeResponse: boolean;
     registerHandlers: (...handlers: Array<Handlers<T>>) => any;