Windows Installer: gssapi.dll in Heimdal\bin

gssapi.dll is supposed to be implementation agnostic.  No version
numbers and no manifest required to load it.   In addition to the
version that is installed as part of the assembly also include a
version that can be discovered by LoadLibrary() via PATH search.

Change-Id: I1865dd2ecec208745a40e699837bd2a888341a31
Windows Installer: Add missing Package properties

Platform
Manufacturer
InstallScope
InstallPrivileges
Keywords

Change-Id: I04ecfb4456e62a60e737ac26de098f11849c4ec0