develop/ktcc: Post-SVN tidy

- Move source code from `trunk` into program root directory.
- Update build files.

programs/develop/ktcc/libc.obj/include/cryptal/rot-13.h

@@ -0,0 +1,20 @@
+/*********************************************************************
+* Filename:   rot-13.h
+* Author:     Brad Conte (brad AT bradconte.com)
+* Copyright:
+* Disclaimer: This code is presented "as is" without any guarantees.
+* Details:    Defines the API for the corresponding ROT-13 implementation.
+*********************************************************************/
+
+#ifndef ROT13_H
+#define ROT13_H
+
+/*************************** HEADER FILES ***************************/
+#include <stddef.h>
+
+/*********************** FUNCTION DECLARATIONS **********************/
+// Performs IN PLACE rotation of the input. Assumes input is NULL terminated.
+// Preserves each charcter's case. Ignores non alphabetic characters.
+void rot13(char str[]);
+
+#endif   // ROT13_H