In case of JDK11 or later add JavaFX files to the classpath of the spotbugs task. (#774)
In case of JDK11 or later add JavaFX files to the classpath of the spotbugs task. (#774)

fixes TweetWallFX/TweetwallFX#773
mklaehn/TweetwallFX,svenreimers/TweetwallFX,TweetWallFX/TweetwallFX,reinhapa/TweetwallFX,fvogler/TweetwallFX,jmichelberger/TweetwallFX