Added a nestJS based contract api

- Added an example with trucks and basic fetch in useEffect on page load
  - Added simply test to see whether any data is displayed (and shows the interceptor)
Introduced "CypressStrictMode" which wraps React.StrictMode and checks whether Cypress is involved, if so disable StrictMode.

contracts/api/src/api.constants.ts

@@ -0,0 +1,3 @@
+export const API_CONSTANTS = {
+  fake: "fake",
+};

contracts/api/src/app.controller.ts

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+import { Controller, Get } from "@nestjs/common";
+
+@Controller()
+export class AppController {
+  @Get()
+  getHello(): string {
+    return "Welcome to the contract api";
+  }
+}

contracts/api/src/app.module.ts

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+import { Module } from "@nestjs/common";
+import { AppController } from "./app.controller";
+import { FakeTrucksController } from "./contracts/fake/trucks.controller";
+
+@Module({
+  imports: [],
+  controllers: [AppController, FakeTrucksController],
+  providers: [],
+})
+export class AppModule {}

contracts/api/src/contracts/fake/trucks.controller.ts

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+import { Controller, Get } from "@nestjs/common";
+import { API_CONSTANTS } from "./../../api.constants";
+
+@Controller(`${API_CONSTANTS.fake}/trucks`)
+export class FakeTrucksController {
+  @Get()
+  get() {
+    return [
+      {
+        id: "de5ddb70-b2a7-4309-a992-62260a09683a",
+        licensePlate: "xx-yy-zz",
+        color: "black",
+      },
+      {
+        id: "087e0b0b-1c13-46e3-8920-762f5738072e",
+        licensePlate: "xx-yy-zz",
+        color: "red",
+      },
+    ];
+  }
+}

contracts/api/src/main.ts

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+import { NestFactory } from "@nestjs/core";
+import { AppModule } from "./app.module";
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule);
+  // allow app to be called from everywhere
+  app.enableCors();
+  // you can disable etags so that you always get 200's instead of 304s :)
+  // app.getHttpAdapter().getInstance().set("etag", false);
+  await app.listen(9600);
+}
+bootstrap();