task(package.json): install babel-cli babel-preset-es2015 babel-preset-react packages.

Installed by the following command:
$ ./mvnw -Pfrontend frontend:npm -Dfrontend.npm.arguments='install babel-cli babel-preset-es2015 babel-preset-react --save-dev'

Addressed to #1060

No functional changes.

Author: php-coder

.gitignore

@@ -20,6 +20,7 @@ src/main/javascript/*/*.min.js
 
 # managed by frontend-maven-plugin
 src/main/frontend/node/
+src/main/frontend/node_modules/
 
 # Vagrant related files
 .vagrant/

pom.xml

@@ -1234,6 +1234,16 @@
 								</goals>
 								<phase>initialize</phase>
 							</execution>
+							<execution>
+								<id>npm-ci</id>
+								<goals>
+									<goal>npm</goal>
+								</goals>
+								<phase>initialize</phase>
+								<configuration>
+									<arguments>ci</arguments>
+								</configuration>
+							</execution>
 						</executions>
 					</plugin>
 				</plugins>