Added test-case for setdiff1d (#1110)
Added test-case for setdiff1d (#1110)

* Added test-case for setdiff1d

* Bugfix

xtensor-stack/xtensor,JohanMabille/xtensor,JohanMabille/xtensor,QuantStack/xtensor,QuantStack/xtensor,xtensor-stack/xtensor