Adiciona arquivo de configuração de servlets

Encryption-WebClient/src/main/webapp/WEB-INF/web.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"/>
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
+    <servlet>
+        <servlet-name>Faces Servlet</servlet-name>
+        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
+        <load-on-startup>1</load-on-startup>
+    </servlet>
+    <servlet-mapping>
+        <servlet-name>Faces Servlet</servlet-name>
+        <url-pattern>*.xhtml</url-pattern>
+    </servlet-mapping>
+</web-app>