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

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

	#include "time_support.h"

the following form should be used.

	#include <helper/time_support.h>

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

src/jtag/drivers/ft2232.c

@@ -43,7 +43,7 @@
 /* project specific includes */
 #include "interface.h"
 #include "commands.h"
-#include "time_support.h"
+#include <helper/time_support.h>
 
 #if IS_CYGWIN == 1
 #include <windows.h>

src/jtag/drivers/presto.c

@@ -26,7 +26,7 @@
 #endif
 
 #include "interface.h"
-#include "time_support.h"
+#include <helper/time_support.h>
 #include "bitq.h"