debuggers: import openocd-0.7.0

Initial check-in of openocd-0.7.0 as it can be downloaded from
http://sourceforge.net/projects/openocd/files/openocd/0.7.0/

Any modifications will follow.

Change-Id: I6949beaefd589e046395ea0cb80f4e1ab1654d55

debuggers/openocd/jimtcl/examples.ext/README

@@ -0,0 +1,7 @@
+This directory contains examples of C extensions for Jim.
+
+In general, do:
+
+  build-jim-ext extsource.c
+
+See the Makefile

debuggers/openocd/jimtcl/examples.ext/helloworld.c

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+/*
+  * hello.c -- A minimal Jim C extension.
+  */
+#include <jim.h>
+
+static int
+Hello_Cmd(Jim_Interp *interp, int objc, Jim_Obj *const objv[])
+{
+    Jim_SetResultString(interp, "Hello, World!", -1);
+    return JIM_OK;
+}
+
+/*
+ * Jim_helloworldInit -- Called when Jim loads your extension.
+ *
+ * Note that the name *must* correspond exactly to the name of the extension:
+ *  Jim_<extname>Init
+ */
+int
+Jim_helloworldInit(Jim_Interp *interp)
+{
+    Jim_CreateCommand(interp, "hello", Hello_Cmd, NULL, NULL);
+    return JIM_OK;
+}