feat(types): add request and response interfaces (#4389)

### Description
Adds the high-level Request and Response interfaces

### Testing
`yarn test:all`

Author: milesziemer

packages/types/src/index.ts

@@ -13,6 +13,7 @@ export * from "./logger";
 export * from "./middleware";
 export * from "./pagination";
 export * from "./profile";
+export * from "./request";
 export * from "./response";
 export * from "./retry";
 export * from "./serde";

packages/types/src/request.ts

@@ -0,0 +1,4 @@
+export interface Request {
+  destination: URL;
+  body?: any;
+}

packages/types/src/response.ts

@@ -38,3 +38,7 @@ export interface MetadataBearer {
    */
   $metadata: ResponseMetadata;
 }
+
+export interface Response {
+  body: any;
+}