Move libtorture to top-level.

diff --git a/source4/lib/torture/config.mk b/lib/torture/config.mk
similarity index 100%
rename from source4/lib/torture/config.mk
rename to lib/torture/config.mk

diff --git a/source4/lib/torture/subunit.c b/lib/torture/subunit.c
similarity index 100%
rename from source4/lib/torture/subunit.c
rename to lib/torture/subunit.c

diff --git a/source4/lib/torture/torture.c b/lib/torture/torture.c
similarity index 100%
rename from source4/lib/torture/torture.c
rename to lib/torture/torture.c

diff --git a/source4/lib/torture/torture.h b/lib/torture/torture.h
similarity index 100%
rename from source4/lib/torture/torture.h
rename to lib/torture/torture.h

diff --git a/source4/lib/torture/torture.pc.in b/lib/torture/torture.pc.in
similarity index 100%
rename from source4/lib/torture/torture.pc.in
rename to lib/torture/torture.pc.in