feat: create, view, edit, delete data-table (#365)

- Add view-data-table
- Add edit-data-table
- Add create-data-table

Fixes #171

Co-authored-by: Chirag Gupta <gchirag@apache.org>

src/app/system/manage-data-tables/edit-data-table/edit-data-table.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { EditDataTableComponent } from './edit-data-table.component';
+
+describe('EditDataTableComponent', () => {
+  let component: EditDataTableComponent;
+  let fixture: ComponentFixture<EditDataTableComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ EditDataTableComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(EditDataTableComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});