Symmecrypt Versions Save

• Update to go 1.19
• Upgrade golang.org/x/crypto

• Fix read issues in stream package: missing chunks and invalid headers

• Support encrypting large file via the stream package to split it in smaller chunks
• Support convergent encryption via the convergent package
• Remove dependencies on error/log packages

• NewKey function (split from LoadKey)

v0.4.2 is the same version than 0.4.1, but we proper semver to match Golang modules requirements, and on the correct commit.

Fix miscreant import path (#23)

• Decrypt Marshal uses json.Decoder UseNumber()