Feature request: Add write_uXX_from to WriteBytesExt trait

I write some kind of protocol parser and I use next code to read protocol data:
```rust
reader.read_u32_into::(&mut buffer);
```

I would like to use the same logic for writer:
```rust
writer.write_u32_from::(&buffer);
```

Is that already possible? Or it needs implementation?

Start at the WriteBytesExt trait and compare the requested write_u32_from call with the existing read_u32_into method shown in the issue. Determine whether the trait already supports writing a buffer with an endian parameter, then implement the requested write_uXX_from behavior if needed and verify that the corresponding endian-specific writing cases work.

Written by the indexing model from the issue text.