The review of std.hash package

[Denis Shelomovskij]

The question about module names.

Is it supposed that e.g. std.hash.crc module will contain many CRC 
implementations, not only one CRC-32? If not, it will be better to call 
it std.hash.crc32 because other CRC variants are also in use. Or even 
std.hash.crc.crc32.

Same with std.hash.sha and std.hash.md modules.

-- 
Денис В. Шеломовский
Denis V. Shelomovskij