refactor(components): convert components to separate modules

src/components/alert/alert.module.ts

@@ -0,0 +1,33 @@
+import { CommonModule } from '@angular/common';
+import { FormsModule } from '@angular/forms';
+import { NgModule, ModuleWithProviders } from '@angular/core';
+
+import { ButtonModule } from '../button/button.module';
+import { BackdropModule } from '../backdrop/backdrop.module';
+
+import { AlertCmp } from './alert-component';
+
+@NgModule({
+  imports: [
+    BackdropModule,
+    ButtonModule,
+    CommonModule,
+    FormsModule
+  ],
+  declarations: [
+    AlertCmp
+  ],
+  exports: [
+    AlertCmp
+  ],
+  entryComponents: [
+    AlertCmp
+  ]
+})
+export class AlertModule {
+  public static forRoot(): ModuleWithProviders {
+    return {
+      ngModule: AlertModule, providers: []
+    };
+  }
+}