LU-10869 build: package configuration files for Ubuntu / Debian

For a long time Lustre never added /etc configuration files to its
debian packages. It could get away with but now you can see it
fail conf-sanity test 76a. This test the lctl set_param -P which
uses udev events to set the tunables for lustre. In order for it
to work a default udev rule has to be added to 99-lustre.rules.
Beside the missing 99-lustre.rules and in all the other files used
for configuration. Lastly create conffile which is the way Debian
handles potential stomping of configuration files. When installing
with apt-get install it will ask the person installing if they
want to over ride specific files.

Test-Parameters: clientdistro=ubuntu1604 trivial testlist=conf-sanity
Test-Parameters: envdefinitions=ONLY=76a testlist=conf-sanity

Lustre-change: https://review.whamcloud.com/31850


Lustre-commit: 8f221cf6

Change-Id: Ic0aaf2bba531ce23a3e23ef070a1501032ad1c9f
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Thomas Stibor <t.stibor@gsi.de>
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Reviewed-on: https://review.whamcloud.com/32471


Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>