Add support for Utimaco HSM
There are couple of issues found by my testing:
- BIND 9.11 and BIND 9.12 fails on DigestUpdate, as Utimaco HSM requires user to be authenticated before any crypto operation is executed and our code checks for MD5 and SHA1 functionality before the login is even attempted
BIND 9.13 is broken in some other way (I'll add more info later)