[ITP] libb2 0.98.1

[Daisuke Fujimura]

Hello,

[ITP] A new package proposal: libb2

- libb2
- libb2_1
- libb2-devel

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SUMMARY: C library providing BLAKE2b, BLAKE2s, BLAKE2bp, BLAKE2sp
HOMEPAGE: https://github.com/BLAKE2/libb2
SRC_URI: https://github.com/BLAKE2/libb2/archive/v0.98.1.tar.gz
LICENSE: Creative Commons Zero v1.0 Universal

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Corresponding Linux/Unix packages are searched:
- https://repology.org/project/libb2/versions

Cygportfile, packages and logs:
- https://yacp.osdn.jp/itp/libb2/

CI (playground)
- https://cygwin.com/cgi-bin2/jobs.cgi?id=1220
- https://ci.appveyor.com/project/cygwin/scallywag/builds/36142216

Prototype:
- https://github.com/fd00/yacp/tree/7fcdc78d5e88c6141d2d4bb2f26646a8ba521c43/libb2