Add javafx to ignore list for API check (ant check-plugins)

javafx is expected to be provided by the installed Java distribution, be it our
installers, one provided by OpenWebStart, or installed by the user.

git-svn-id: https://josm.openstreetmap.de/svn/trunk@19174 0c6e7542-c601-0410-84e7-c038aed88b3b

build.xml

@@ -777,6 +777,8 @@ Build-Date: ${build.tstamp}
             <ignore classname="org.w3c.*"/>
             <ignore classname="org.zeromq.*"/>
             <ignore classname="waffle.*"/>
+            <!-- Our installers include javafx -->
+            <ignore classname="javafx.*"/>
             <!-- plugins used by another ones -->
             <ignore classname="org.openstreetmap.josm.plugins.geotools.*"/>
             <ignore classname="org.openstreetmap.josm.plugins.jaxb.*"/>