Add testcase for nested inner class deriving from a templated base class and defined outside of the outer class.

For languages that don't support nested class support, use flatnested.
See issue #270

Examples/test-suite/java/nested_template_base_runme.java

@@ -0,0 +1,27 @@
+import nested_template_base.*;
+
+public class nested_template_base_runme {
+
+  static {
+    try {
+	System.loadLibrary("nested_template_base");
+    } catch (UnsatisfiedLinkError e) {
+      System.err.println("Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" + e);
+      System.exit(1);
+    }
+  }
+
+  public static void main(String argv[]) {
+    OuterC.InnerS ois = new OuterC.InnerS(123);
+    OuterC.InnerC oic = new OuterC.InnerC();
+
+    // Check base method is available
+    if (oic.outer(ois).getVal() != 123)
+      throw new RuntimeException("Wrong value calling outer");
+
+    // Check non-derived class using base class
+    if (oic.innerc().outer(ois).getVal() != 123)
+      throw new RuntimeException("Wrong value calling innerc");
+
+  }
+}