change #include "types.h" to <helper/types.h>

Changes from the flat namespace to heirarchical one.  Instead of writing:

	#include "types.h"

the following form should be used.

	#include <helper/types.h>

The exception is from .c files in the same directory.

src/target/register.c

@@ -24,7 +24,7 @@
 #include "config.h"
 #endif
 
-#include "types.h"
+#include <helper/types.h>
 #include "register.h"
 #include <helper/log.h>