Fix binary output different in different platform (#7718)

* Fix binary output different in different platform, due to the nan serialization

* Add check generated code on windows ci

* Remove resdundant script

* Fix eof, and check script

* Minor bug in gen code script

* Fix windows script, remove redundant scripts

* Undelete redundante codes

* Fix github action

* Ignore eof generate grpc

Co-authored-by: Derek Bailey <derekbailey@google.com>

include/flatbuffers/util.h

@@ -31,6 +31,7 @@
 #  include <stdio.h>
 #endif  // FLATBUFFERS_PREFER_PRINTF
 
+#include <cmath>
 #include <limits>
 #include <string>
 
@@ -313,6 +314,7 @@ inline bool StringToFloatImpl(T *val, const char *const str) {
   strtoval_impl(val, str, const_cast<char **>(&end));
   auto done = (end != str) && (*end == '\0');
   if (!done) *val = 0;  // erase partial result
+  if (done && std::isnan(*val)) { *val = std::numeric_limits<T>::quiet_NaN(); }
   return done;
 }