An inital poke at using Rustlang to hash files (MD5, SHA1, SHA256, SHA512)
Usage:
hasher.exe [OPTIONS]
Hash input file to stdio
Optional arguments:
-h,--help Show this help message and exit
-f,--file FILE Input file
-d,--dir DIR Input directory
-b,--buffer BUFFER Buffer size (bytes)
-j, --json JSON output