develop/ktcc: Post-SVN tidy

- Move source code from `trunk` into program root directory.
- Update build files and include paths.
- Note: Line endings standardised from `CRLF` > `LF`, so best to view diffs with whitespace changes hidden.

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

@@ -0,0 +1,12 @@
+#include <shell_api.h>
+#include <string.h>
+
+unsigned shell_get_pid()
+{
+    unsigned pid;
+    __shell_init();
+    *__shell_shm = SHELL_PID;
+    __SHELL_WAIT();
+    memcpy(&pid, __shell_shm+1, sizeof(unsigned));
+    return pid;
+}