Add the base32 crate in version 0.4.0 as a dependency

To parse OTP secrets in base32 representation, we need a new dependency:
the base32 crate.

Import subrepo base32/:base32 at a74cd9246fc0e08d6f5cfcb644bfdf76dd438613

1 files changed, 35 insertions, 0 deletions

diff --git a/base32/README.md b/base32/README.md
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+# base32 [![Build Status](https://travis-ci.org/andreasots/base32.svg?branch=master)](https://travis-ci.org/andreasots/base32)
+
+This library lets you encode and decode in either [RFC4648 Base32](http://en.wikipedia.org/wiki/Base32#RFC_4648_Base32_alphabet) or in [Crockford Base32](http://en.wikipedia.org/wiki/Base32#Crockford.27s_Base32).
+
+# Usage
+
+```rust
+// crockford base32
+assert_eq!(encode(CrockfordBase32, [0xF8, 0x3E, 0x0F, 0x83, 0xE0]), Vec::from_slice("Z0Z0Z0Z0".to_ascii()));
+assert_eq!(decode(CrockfordBase32, "Z0Z0Z0Z0".to_ascii()).unwrap(), vec![0xF8, 0x3E, 0x0F, 0x83, 0xE0]);
+
+// rfc4648 base32
+assert_eq!(encode(RFC4648Base32, [0xF8, 0x3E, 0x7F, 0x83, 0xE7]), Vec::from_slice("7A7H7A7H".to_ascii()));
+assert_eq!(decode(RFC4648Base32, "7A7H7A7H".to_ascii()).unwrap(), vec![0xF8, 0x3E, 0x7F, 0x83, 0xE7]);
+
+// rfc4648 base32 without padding characters (=)
+assert_eq!(encode(UnpaddedRFC4648Base32, [0xF8, 0x3E, 0x7F, 0x83, 0xE7]), Vec::from_slice("7A7H7A7H".to_ascii()));
+assert_eq!(decode(UnpaddedRFC4648Base32, "7A7H7A7H".to_ascii()).unwrap(), vec![0xF8, 0x3E, 0x7F, 0x83, 0xE7]);
+```
+
+## License
+
+Licensed under either of
+
+ * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+ * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+### Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.