[new release] base64 (3.0.0)

CHANGES:

* Implemenation of Base64 according to RFC 2045 (available on base64.rfc2045)
* New implementation of Base64 according to RFC 4648 from nocrypto's implementation
* Fix bad access with `String.iter` on the old implementation of Base64 (@dinosaure, mirage/ocaml-base64#23)
* Check isomorphism between `encode` & `decode` function (@hannesm, @dinosaure, mirage/ocaml-base64#20)
* Add tests from RFC 3548 and from PHP impl. (@hannesm, @dinosaure, mirage/ocaml-base64#24)
* Add fuzzer on both implementations
 - check isomorphism
 - check bijection
 - check if `decode` does not raise any exception
* __break-api__, `B64` was renamed to `Base64` (@copy, @avsm, @dinosaure, mirage/ocaml-base64#17)
* __break-api__, `Base64.decode` and `Base64.encode` returns a result type instead to raise an exception (@hannesm, @dinosaure, mirage/ocaml-base64#21)
* __break-api__, Add `sub` type to avoid allocation to the end-user (@avsm, @dinosaure, mirage/ocaml-base64#24)
* __break-api__, Add `pad` argument on `decode` function to check if input is well-padded or not (@hannesm, @dinosaure, mirage/ocaml-base64#24)
* __break-api__, Add `off` and `len` optional arguments on `encode` & `decode` functions to compute a part of input (@cfcs, @dinosaure, mirage/ocaml-base64#24)
* Better performance (see mirage/ocaml-base64#24) (@dinosaure)
* Review of code by @cfcs (see mirage/ocaml-base64#24)

packages/base64/base64.3.0.0/opam

@@ -0,0 +1,33 @@
+opam-version: "2.0"
+maintainer: "[email protected]"
+authors: [ "Thomas Gazagnaire"
+           "Anil Madhavapeddy"
+           "Peter Zotov" ]
+license: "ISC"
+homepage: "https://github.com/mirage/ocaml-base64"
+doc: "http://mirage.github.io/ocaml-base64/"
+bug-reports: "https://github.com/mirage/ocaml-base64/issues"
+dev-repo: "git+https://github.com/mirage/ocaml-base64.git"
+synopsis: "Base64 encoding for OCaml"
+description: """
+Base64 is a group of similar binary-to-text encoding schemes that represent
+binary data in an ASCII string format by translating it into a radix-64
+representation.  It is specified in RFC 4648.
+"""
+depends: [
+  "base-bytes"
+  "dune" {build & >= "1.0.1"}
+  "bos" {with-test}
+  "rresult" {with-test}
+  "alcotest" {with-test}
+]
+build: [
+  ["dune" "subst"]
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name] {with-test}
+]
+url {
+  src:
+    "https://github.com/mirage/ocaml-base64/releases/download/v3.0.0/base64-v3.0.0.tbz"
+  checksum: "md5=f94f8e73b7325bf02436293b1321e35b"
+}