Make krb5_pac a heim_object_t and use heim_retain() (i.e. reference count +1)
as the copy constructor for the type decoration.
Note: this assumes that PACs included in naming attributes are immutable.
Use uintptr_t for hash type; this is consistent with CoreFoundation, which uses
32-bit integers on 32-bit platforms for the hash code, and 64-bit integers on
64-bit platforms. (libheimbase is modelled on CoreFoundation.)
Previously we used unsigned long, which would have the same behavior on
LP32/LP64 systems, but not on Windows (where unsigned long is 32-bits on 64-bit
platforms).
Sync with most changes in AS/TGS client from Apple's Heimdal-597.121.1
(opensource.apple.com).
Changes include:
- FAST support in TGS client
- Refactored pre-auth client to be more easily extensible
- Pin KDC host and AD site name in API calls
Note the completely refactored TGS client loop is not imported as that was
considered too intrusive.
