Fix htole64 and le64toh missing on non-linux platforms

[Solpatium]

Split from #11

[ilyalesokhin-starkware]

Did you strip the license header?

[Solpatium]

Yes, I strip it from https://github.com/sahlberg/libsmb2/blob/master/include/portable-endian.h since author placed in public domain.

[ilyalesokhin-starkware]

Reviewable status: 0 of 2 files reviewed, 2 unresolved discussions (waiting on @ilyalesokhin-starkware and @Solpatium)

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src/starkware/crypto/ffi/utils.cc line 1 at r1 (raw file):

#include <endian.h>

This should be removed now, right?

Code quote:

#include <endian.h>

[Solpatium]

Good catch, I missed it after the split from the initial PR. Sorry 😅

[ilyalesokhin-starkware]

Reviewed 1 of 2 files at r1, 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Solpatium)