let safetensors.load support load weight from bytearray

[JeryZeng]

Feature request

current safetensors.load only support load memory data from bytes, while read large weight data, bytearray must convert to bytes first,this operation make memoery peak use double and copy ram is a huge cost. so read weight from bytearray can reduce cost.

Motivation

while concurrent read a large file from distribute file system(can speed up read), use bytearray can reduce ram useage,but safetensors read only support bytes memory data

Your contribution

none