FileHashAlgorithm type  
Defines values for FileHashAlgorithm. 
KnownFileHashAlgorithm can be used interchangeably with FileHashAlgorithm,
this enum contains the known values that the service supports.
Known values supported by the service
Unknown: Unknown hash algorithm 
MD5: MD5 hash type 
SHA1: SHA1 hash type 
SHA256: SHA256 hash type 
SHA256AC: SHA256 Authenticode hash type
type FileHashAlgorithm = string