Prefer own copy of jdk.graal.compiler.graphio rather its jargraal version from GraalVM

Author: Jaroslav Tulach

visualizer/IdealGraphVisualizer/Data/src/main/nbm/manifest.mf

@@ -2,4 +2,4 @@ Manifest-Version: 1.0
 OpenIDE-Module: org.graalvm.visualizer.data
 OpenIDE-Module-Localizing-Bundle: org/graalvm/visualizer/data/Bundle.properties
 OpenIDE-Module-Specification-Version: 1.5
-
+OpenIDE-Module-Hide-Classpath-Packages: jdk.graal.compiler.graphio.**