feat: add import to excel

Made at the request of the customer

src/api/v1/import.service.ts

@@ -0,0 +1,22 @@
+import {Injectable} from "@angular/core";
+import ApiService, {AvailableVersion} from "@api/api.service";
+import {ScheduleRequest} from "@api/v1/scheduleRequest";
+
+@Injectable()
+export class ImportService extends ApiService {
+  public readonly basePath = 'Import/';
+  public readonly version = AvailableVersion.v1;
+
+  public importToExcel(data: ScheduleRequest) {
+    let request = this.createRequestBuilder()
+      .setData(data)
+      .setEndpoint('ImportToExcel')
+      .build;
+
+    console.log(this.combinedUrl(request));
+    console.log(data);
+    return this.http.post(this.combinedUrl(request), data, {
+      responseType: 'blob'
+    });
+  }
+}