develop/ktcc: Post-SVN tidy

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

programs/develop/ktcc/lib/libshell/shell_gets.c

@@ -0,0 +1,10 @@
+#include <shell_api.h>
+#include <string.h>
+
+void shell_gets(char *str, int n)
+{
+    __shell_init();
+    *__shell_shm = SHELL_GETS;
+    __SHELL_WAIT();
+    strncpy(str, __shell_shm+1, n);
+}