libsodium v1.0.14

[ivRodriguezCA]

• Updated libsodium to v1.0.14

[ivRodriguezCA]

Superseded by PR #14 — closing.

libsodium is now 1.0.22, but vendored as an XCFramework rather than as an updated fat archive,
and the container change is the substance rather than a packaging preference. The libsodium.a in
this repo had x86_64 and arm64 slices that were both built for the iOS device platform, so any
simulator build on Apple Silicon failed at link:

ld: building for 'iOS-simulator', but linking in object file
(libsodium.a[arm64][12](libsodium_la-curve25519_ref10.o)) built for 'iOS'

A .a is indexed by architecture alone, and device-arm64 and simulator-arm64 are the same
architecture — so no fat archive can carry both, at any libsodium version. An XCFramework is the
only container that distinguishes them by platform, which is why the update had to change shape
instead of just changing version.

Deployment target also moved 10.3 → 13.0 in the same commit, since 10.3 is below the floor current
Xcode will build at all.