feat(centers && groups) : Centers and groups list (#238)

*feat(centers && groups) : Centers and groups list (#238)

src/app/groups/groups.module.ts

@@ -0,0 +1,23 @@
+import { NgModule,  CUSTOM_ELEMENTS_SCHEMA  } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { CoreModule } from '../core/core.module';
+import { MatTableModule } from '@angular/material/table';
+import { FlexLayoutModule } from '@angular/flex-layout';
+
+import { GroupsComponent } from './groups.component';
+import { GroupsRoutingModule } from 'app/groups/groups-routing.module';
+import { GroupsService } from './groups.service';
+@NgModule({
+  imports: [
+    CommonModule,
+    GroupsRoutingModule,
+    CoreModule,
+    MatTableModule,
+    FlexLayoutModule
+  ],
+  declarations: [GroupsComponent],
+  schemas: [
+    CUSTOM_ELEMENTS_SCHEMA
+  ]
+})
+export class GroupsModule { }