Re-enable vectorized bitwise_invert for integer types

Author: ndgrigorian

dpctl/tensor/libtensor/include/kernels/elementwise_functions/bitwise_invert.hpp

@@ -58,9 +58,8 @@ template <typename argT, typename resT> struct BitwiseInvertFunctor
 
     using is_constant = typename std::false_type;
     // constexpr resT constant_value = resT{};
-    using supports_vec = typename std::false_type;
+    using supports_vec = typename std::negation<std::is_same<argT, bool>>;
     using supports_sg_loadstore = typename std::true_type;
-    ;
 
     resT operator()(const argT &in) const
     {
@@ -71,6 +70,12 @@ template <typename argT, typename resT> struct BitwiseInvertFunctor
             return ~in;
         }
     }
+
+    template <int vec_sz>
+    sycl::vec<resT, vec_sz> operator()(const sycl::vec<argT, vec_sz> &in) const
+    {
+        return ~in;
+    }
 };
 
 template <typename argT,