feat(system): view, edit, delete code (#380)

- Add view code component
- Add edit code component

Fixes: #379

src/app/system/codes/view-code/code-values.resolver.ts

@@ -0,0 +1,31 @@
+/** Angular Imports */
+import { Injectable } from '@angular/core';
+import { Resolve, ActivatedRouteSnapshot } from '@angular/router';
+
+/** rxjs Imports */
+import { Observable } from 'rxjs';
+
+/** Custom Services */
+import { SystemService } from '../../system.service';
+
+/**
+ * Code Values data resolver.
+ */
+@Injectable()
+export class CodeValuesResolver implements Resolve<Object> {
+
+  /**
+   * @param {SystemService} systemService System service.
+   */
+  constructor(private systemService: SystemService) {}
+
+  /**
+   * Returns the Code Values data.
+   * @returns {Observable<any>}
+   */
+  resolve(route: ActivatedRouteSnapshot): Observable<any> {
+    const codeId = route.paramMap.get('id');
+    return this.systemService.getCodeValues(codeId);
+  }
+
+}