Fix build, use sub-modules instead.

Author: dizzzz

extensions/modules/xslfo/pom.xml

@@ -79,25 +79,27 @@
 
         <dependency>
             <groupId>org.apache.xmlgraphics</groupId>
-            <artifactId>fop</artifactId>
+            <artifactId>fop-core</artifactId>
             <version>2.9</version>
-            <exclusions>
-                <!--
-                    fop-core depends on javax.servlet:servlet-api:jar:2.2
-                    which conflicts with javax.servlet:javax.servlet-api:jar:3.1.0
-                    used by eXist-db
-                -->
-                <exclusion>
-                    <groupId>javax.servlet</groupId>
-                    <artifactId>servlet-api</artifactId>
-                </exclusion>
-            </exclusions>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.xmlgraphics</groupId>
+            <artifactId>fop-events</artifactId>
+            <version>2.9</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.xmlgraphics</groupId>
+            <artifactId>fop-util</artifactId>
+            <version>2.9</version>
+            <scope>runtime</scope>
         </dependency>
 
         <dependency>
             <groupId>org.apache.xmlgraphics</groupId>
             <artifactId>xmlgraphics-commons</artifactId>
-            <version>2.8</version>
+            <version>2.9</version>
         </dependency>
 
         <dependency>