Add zlib dependency to libarchive; exclude expat & libxml2 dependencies

* The xml dependency causes version conflicts with older linux systems,
  e.g., ubuntu 16.04
* Because xml is only used for the xar format, turn it off
Status Job ID Name Coverage
  External
passed cdash

failed cmb@master-kerbin-windows-shared-release+protobuf+superbuild

failed cmb@master-kerbin-windows-shared-release+superbuild

failed cmb@master-moho-linux-shared-relwithdebinfo+python3+superbuild

passed cmb@master-moho-linux-shared-relwithdebinfo+superbuild

passed cmb@master-norkit-osx-shared-release+superbuild

passed cmb@master-praxis-windows-shared-release+superbuild

passed cmb@master-talosiv-osx-shared-release+superbuild

passed cmb@master-tatooine-osx-shared-release+superbuild

passed ghostflow-branch-check-master

passed ghostflow-branch-check-release

failed smtk@master-kerbin-windows-shared-release+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+python3+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild+vtk

failed smtk@master-norkit-osx-shared-release+superbuild

failed smtk@master-praxis-windows-shared-release+superbuild

failed smtk@master-talosiv-osx-shared-release+superbuild

failed smtk@master-tatooine-osx-shared-release+superbuild

failed cmb@master-kerbin-windows-shared-release+protobuf+superbuild

01:07:13

failed cmb@master-kerbin-windows-shared-release+protobuf+superbuild

failed cmb@master-kerbin-windows-shared-release+protobuf+superbuild

failed cmb@master-kerbin-windows-shared-release+protobuf+superbuild

failed cmb@master-kerbin-windows-shared-release+superbuild

failed cmb@master-kerbin-windows-shared-release+superbuild

failed cmb@master-kerbin-windows-shared-release+superbuild

failed cmb@master-kerbin-windows-shared-release+superbuild

01:02:45

failed cmb@master-moho-linux-shared-relwithdebinfo+python3+superbuild

00:00:08

failed cmb@master-moho-linux-shared-relwithdebinfo+python3+superbuild

failed cmb@master-moho-linux-shared-relwithdebinfo+python3+superbuild

failed cmb@master-moho-linux-shared-relwithdebinfo+python3+superbuild

passed cmb@master-moho-linux-shared-relwithdebinfo+superbuild

00:57:41

passed cmb@master-moho-linux-shared-relwithdebinfo+superbuild

passed cmb@master-moho-linux-shared-relwithdebinfo+superbuild

passed cmb@master-moho-linux-shared-relwithdebinfo+superbuild

passed cmb@master-norkit-osx-shared-release+superbuild

02:16:04

passed cmb@master-norkit-osx-shared-release+superbuild

passed cmb@master-norkit-osx-shared-release+superbuild

passed cmb@master-norkit-osx-shared-release+superbuild

passed cmb@master-praxis-windows-shared-release+superbuild

passed cmb@master-praxis-windows-shared-release+superbuild

01:45:17

passed cmb@master-praxis-windows-shared-release+superbuild

passed cmb@master-praxis-windows-shared-release+superbuild

passed cmb@master-talosiv-osx-shared-release+superbuild

01:13:51

passed cmb@master-talosiv-osx-shared-release+superbuild

passed cmb@master-talosiv-osx-shared-release+superbuild

passed cmb@master-talosiv-osx-shared-release+superbuild

passed cmb@master-tatooine-osx-shared-release+superbuild

01:08:54

passed cmb@master-tatooine-osx-shared-release+superbuild

passed cmb@master-tatooine-osx-shared-release+superbuild

passed cmb@master-tatooine-osx-shared-release+superbuild

passed ghostflow-branch-check-master

failed smtk@master-kerbin-windows-shared-release+superbuild

failed smtk@master-kerbin-windows-shared-release+superbuild

failed smtk@master-kerbin-windows-shared-release+superbuild

failed smtk@master-kerbin-windows-shared-release+superbuild

01:05:01

failed smtk@master-moho-linux-shared-relwithdebinfo+python3+superbuild

00:00:08

failed smtk@master-moho-linux-shared-relwithdebinfo+python3+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+python3+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+python3+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild

00:46:34

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild+vtk

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild+vtk

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild+vtk

failed smtk@master-moho-linux-shared-relwithdebinfo+superbuild+vtk

00:30:06

failed smtk@master-norkit-osx-shared-release+superbuild

02:09:02

failed smtk@master-norkit-osx-shared-release+superbuild

failed smtk@master-norkit-osx-shared-release+superbuild

failed smtk@master-norkit-osx-shared-release+superbuild

failed smtk@master-praxis-windows-shared-release+superbuild

failed smtk@master-praxis-windows-shared-release+superbuild

01:40:43

failed smtk@master-praxis-windows-shared-release+superbuild

failed smtk@master-praxis-windows-shared-release+superbuild

failed smtk@master-talosiv-osx-shared-release+superbuild

00:56:45

failed smtk@master-talosiv-osx-shared-release+superbuild

failed smtk@master-talosiv-osx-shared-release+superbuild

failed smtk@master-talosiv-osx-shared-release+superbuild

failed smtk@master-tatooine-osx-shared-release+superbuild

failed smtk@master-tatooine-osx-shared-release+superbuild

failed smtk@master-tatooine-osx-shared-release+superbuild

failed smtk@master-tatooine-osx-shared-release+superbuild

01:06:17