chore: add license headers

Author: ngonzalezpazFC

src/test/java/com/flowingcode/vaadin/addons/DemoLayout.java

@@ -1,15 +1,15 @@
 /*-
  * #%L
- * TwinColGrid add-on
+ * Error Window Add-on Project
  * %%
- * Copyright (C) 2017 - 2020 Flowing Code
+ * Copyright (C) 2018 - 2020 Flowing Code
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

src/test/java/com/flowingcode/vaadin/addons/errorwindow/ErrorwindowDemo.java

@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Error Window Add-on Project
+ * %%
+ * Copyright (C) 2018 - 2020 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.errorwindow;
 
 import com.vaadin.flow.component.button.Button;

src/test/java/com/flowingcode/vaadin/addons/errorwindow/ErrorwindowDemoView.java

@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Error Window Add-on Project
+ * %%
+ * Copyright (C) 2018 - 2020 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.errorwindow;
 
 import com.flowingcode.vaadin.addons.DemoLayout;
@@ -11,7 +30,7 @@
 public class ErrorwindowDemoView extends TabbedDemo {
 
 	private static final String ERROR_DEMO = "Error Window Demo";
-    private static final String ERROR_SOURCE =
+	private static final String ERROR_SOURCE =
         "https://github.com/FlowingCode/ErrorWindowAddon/blob/master/src/test/java/com/flowingcode/vaadin/addons/errorwindow/ErrorwindowDemo.java";
 
 	public ErrorwindowDemoView() {

src/test/java/com/flowingcode/vaadin/addons/errorwindow/test/LayoutTest.java

@@ -1,15 +1,15 @@
 /*-
  * #%L
- * TwinColGrid add-on
+ * Error Window Add-on Project
  * %%
- * Copyright (C) 2017 - 2020 Flowing Code
+ * Copyright (C) 2018 - 2020 Flowing Code
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.