[Rust] Serialize to File or generic `std::io::Write`

[Tommaso Fontana]

Hi!

From my understanding, the a flexbuffer has to be built using a Builder, which serializes to an internal Vec<u8>. Would it be possible to serialize to a file?

Generally give a type that implements std::io::Write. This is a problem to me because I'm serializing a struct that barely fits in memory, so the serialization buffer gives me an out of memory.

Thank you