heimdal Extend the 'hdb as a keytab' code [HEIMDAL-600]
heimdal Extend the 'hdb as a keytab' code [HEIMDAL-600]

This extends the hdb_keytab code to allow enumeration of all the keys.

The plan is to allow ktutil's copy command to copy from Samba4's
hdb_samba4 into a file-based keytab used in wireshark.

From Andrew Bartlett

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