Include <stdio.h> (for sprintf) when using UNITY_FLOAT_VERBOSE

src/unity.c

@@ -285,7 +285,7 @@ void UnityPrintMask(const _U_UINT mask, const _U_UINT number)
 
 //-----------------------------------------------
 #ifdef UNITY_FLOAT_VERBOSE
-#include <string.h>
+#include <stdio.h>
 void UnityPrintFloat(_UF number)
 {
     char TempBuffer[32];