chore(generator): Update template barrels to use 'export *'

Close #863

Author: delasteve

addon/ng2/blueprints/component/files/__path__/index.ts

@@ -1 +1 @@
-export { <%= classifiedModuleName %>Component } from './<%= dasherizedModuleName %>.component';
+export * from './<%= dasherizedModuleName %>.component';

addon/ng2/blueprints/directive/files/__path__/index.ts

@@ -1 +1 @@
-export {<%= classifiedModuleName %>} from './<%= dasherizedModuleName %>.directive';
+export * from './<%= dasherizedModuleName %>.directive';

addon/ng2/blueprints/pipe/files/__path__/index.ts

@@ -1 +1 @@
-export { <%= classifiedModuleName %> } from './<%= dasherizedModuleName %>.pipe';
+export * from './<%= dasherizedModuleName %>.pipe';

addon/ng2/blueprints/service/files/__path__/index.ts

@@ -1 +1 @@
-export {<%= classifiedModuleName %>Service} from './<%= dasherizedModuleName %>.service';
+export * from './<%= dasherizedModuleName %>.service';