Adding ability to determine hash of string.
Fixing buffer overflow due to string being too short.
Renaming hash_id members to hash
Renaming service_id members to service
Renaming field_id members to field
replacing 'uint8_t * hash' with 'tallymark_hash hash'
Fixing const cast in tallymark_strerror()
Adding hash functions to library.
Updating how duration is reported.