deserialize_from_vec may be more helperful

[miaomiao1992]

deserialize_from_slice requires vec or &[u8] live longer than object decoded.

deserialize_from_vec may be helperful, and then we can transfer object decoded from one function to another function.

thanks!

[raul-gherman]

@miaomiao1992 were you able to solve this miserable issue? it is also bugging me a lot...

I performed some benchmarks and this crate outperformed prost -- so of course I would go this way, but right now this is a huge blocker...

maybe someone else around here has got any solution? :/

[raul-gherman]

does @tafia still get around these issues every now and then?
we could use a hand...