Added support for the D programming languge.

It is still a bit rough around some edges, particularly with regard to multi-threading and operator overloading, and there are some documentation bits missing, but it should be fine for basic use.

The test-suite should build and run fine with the current versions of DMD, LDC and Tango (at least) on Linux x86_64 and Mac OS X 10.6.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12299 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/d/simple/d2/runme.d

@@ -0,0 +1,27 @@
+module runme;
+
+import std.stdio;
+static import example;
+
+void main() {
+  /*
+   * Call our gcd() function.
+   */
+  int x = 42;
+  int y = 105;
+  int g = example.gcd(x, y);
+  writefln("The gcd of %s and %s is %s.", x, y, g);
+
+  /*
+   * Manipulate the Foo global variable.
+   */
+
+  // Output its current value
+  writefln("Foo = %s", example.Foo);
+
+  // Change its value
+  example.Foo = 3.1415926;
+
+  // See if the change took effect
+  writefln("Foo = %s", example.Foo);
+}