🚧 create irrigation service

src/app/irrigation/irrigation.service.ts

@@ -0,0 +1,7 @@
+import { Injectable } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+
+@Injectable({providedIn: 'root'})
+export class IrrigationService {
+  constructor(private httpClient: HttpClient) {}
+}