Update pom.xml of FXThemes module adding the install plugin and its version

Author: dukke

FXThemes/pom.xml

@@ -199,6 +199,11 @@
         <artifactId>maven-surefire-plugin</artifactId>
         <version>3.1.2</version>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-install-plugin</artifactId>
+        <version>3.1.1</version>
+      </plugin>
     </plugins>
     <pluginManagement>
       <plugins>