Fix the dependency path order when executing tests

Several times had build failures due to having older product
installed and so having conflicting dependencies in the path

Dependencies should be taken in preference,
so putting them first in the path

Author: GregDomjan

src/main/java/com/github/maven_nar/NarUtil.java

@@ -109,7 +109,7 @@ public static String addLibraryPathToEnv(final String path, final Map environmen
     String libPath = path;
     libPath = libPath.replace(File.pathSeparatorChar, separator);
     if (value != null) {
-      value += separator + libPath;
+      value = libPath + separator + value; // items under test first on path
     } else {
       value = libPath;
     }