Oops, forgot to update PLIST after adding PAM library dependency.
Implement the whole symbols de-conflicting framework for Samba4.

Most complicated issue was usage of ASN1 compiler by Heimdal, but
at least things build now, so they should work, too.
Bump after symbols change.
More IDL TODO.
Add actual data source files for Samba4 deconflicting framework.
detected.conflicts is generated, so it should live under ${WRKDIR}, too.