added documentation generation for java/cs

doc/all.hxml

@@ -43,6 +43,20 @@
 -D HXCPP_MULTI_THREADED
 --macro ImportAll.run()
 
+--next
+-java all_java
+--no-output
+-xml java.xml
+-D xmldoc
+--macro ImportAll.run()
+
+--next
+-java all_cs
+--no-output
+-xml cs.xml
+-D xmldoc
+--macro ImportAll.run()
+
 --next
 
 -xml cross.xml