add the subfolders to the FQN of the example #1685

Without this subfolder one can create 2 instances with the same FQN and
the gui does not show the three structure

Author: jan

io.sloeber.core/src/io/sloeber/core/internal/Example.java

@@ -45,7 +45,7 @@ private void calculateFQN() {
 			}
 		} else {
 			for (IArduinoLibraryVersion myLib : myLibs.values()) {
-				myFQN = myLib.getFQN().append(getName());
+				myFQN = myLib.getFQN().append(  myExampleLocation.makeRelativeTo(myLib.getExamplePath()));
 			}
 		}
 	}