[MB-12677]: add the abilty to collect host lookup information
[MB-12677]: add the abilty to collect host lookup information

cbcollect_info will read the hosts, resolv.conf and nsswitch for
unix systems.

For Windows it will collect just the hosts file as it already
collects the other information.

[76658a2722cfc360b68a81107f0c193549bc08f4@tut.by: capitalized Raw]
Signed-off-by: Aliaksey Kandratsenka <76658a2722cfc360b68a81107f0c193549bc08f4@tut.by>
Change-Id: I66cb2eda62d485c84fb1c6dab3f1bdbaf66ecaf3
Reviewed-on: http://review.couchbase.org/43330
Reviewed-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>
Tested-by: Aliaksey Kandratsenka <340b8e09ca65cd3fc686427fcfed17e87eaf61e2@gmail.com>

membase/ns_server,mschoch/ns_server,ceejatec/ns_server,nimishzynga/ns_server,mschoch/ns_server,mschoch/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,ceejatec/ns_server,ceejatec/ns_server,membase/ns_server,mschoch/ns_server,ceejatec/ns_server,ceejatec/ns_server,membase/ns_server,membase/ns_server,mschoch/ns_server,membase/ns_server,nimishzynga/ns_server,mschoch/ns_server,nimishzynga/ns_server,membase/ns_server,ceejatec/ns_server