Add Sendable annotations to Crypto Extras to reflect current sandability so that downstream packages can implement sendable conformance.
Modifications
Add Sendable conformance to appropriate public symbols.
RSA public and private keys are notable omissions, this is because they are backed by SecKey from security framework and we have no guarantees about their sendability
Motivation
Add Sendable annotations to Crypto Extras to reflect current sandability so that downstream packages can implement sendable conformance.
Modifications
Result