Support specify endianness for serialization

It seems arrow-rs's serialization uses machine native endianness.

Is it possible to add a feature flag to stick to an endianness, said little endian? This would helps the software outputs a stable serialize format on all the machine.

No file or test is named. Start by locating arrow-rs's serialization implementation and reviewing the issue discussion for the intended feature-flag behavior; then identify how machine-native endianness is selected and how stable little-endian output would be verified across machines.

Written by the indexing model from the issue text.