Pascal wrapper for RHash

[Delphi] [FPC] RHash is a console application for calculating various check- and hashsums, including CRC32, CRC32C, MD4, MD5, SHA1, SHA256, SHA512, SHA3, AICH, ED2K, DC++ TTH, BitTorrent BTIH, Tiger, GOST R 34.11-94, GOST R 34.11-2012, RIPEMD-160, HAS-160, EDON-R, and Whirlpool. RHash is written in C and is really very fast. LibRHash is a library that "drives" the RHash and can be compiled into a separate DLL or SO library file.