Change network transmitted doubles to fio_fp64_t IEEE 754 type

Encode and decode when transferring over the network.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/ieee754.c b/ieee754.c
index 0fbc7f0..c7742a2 100644
--- a/ieee754.c
+++ b/ieee754.c
@@ -6,6 +6,7 @@
  * Below code was granted to the public domain.
  */
 #include <inttypes.h>
+#include "ieee754.h"
 
 uint64_t pack754(long double f, unsigned bits, unsigned expbits)
 {