Fix equality operator on arrays to work for arbitrary dimensions
Fix equality operator on arrays to work for arbitrary dimensions

jjdekker/libminizinc,nathanielbaxter/libminizinc,nathanielbaxter/libminizinc,jjdekker/libminizinc,nathanielbaxter/libminizinc,nathanielbaxter/libminizinc,jjdekker/libminizinc,tias/libminizinc,jjdekker/libminizinc,tias/libminizinc