Added Native.getNativeVersion()

src/main/java/net/rubygrapefruit/platform/Native.java

@@ -19,6 +19,14 @@ public class Native {
     private Native() {
     }
 
+    /**
+     * Returns the version of the native library implementations used by this class.
+     */
+    @ThreadSafe
+    static public String getNativeVersion() {
+        return String.valueOf(NativeLibraryFunctions.VERSION);
+    }
+
     /**
      * Initialises the native integration, if not already initialized.
      *