Add mp_list_c, mp_from_sequence

doc/mp11/algorithm.adoc

@@ -297,6 +297,17 @@ As `mp_product`, but takes a quoted metafunction.
 
 Same as `mp_drop_c`, but with a type argument `N`. `N::value` must be a nonnegative number.
 
+## mp_from_sequence<S>
+
+    template<class S> using mp_from_sequence = /*...*/
+
+`mp_from_sequence` transforms an integer sequence produced by `make_integer_sequence` into an `mp_list`
+of the corresponding `std::integral_constant` types. Given
+
+    template<class T, class... I> struct S;
+
+`mp_from_sequence<S<T, I...>>` is an alias for `mp_list<std::integral_constant<T, I>...>`.
+
 ## mp_iota_c<N>
 
     template<std::size_t N> using mp_iota_c = /*...*/;

doc/mp11/list.adoc

@@ -21,6 +21,18 @@ http://www.boost.org/LICENSE_1_0.txt
 such as `std::tuple` or `std::variant`. Even `std::pair` can be used if the transformation does not alter the number of the elements in
 the list.
 
+## mp_list_c<T, I...>
+
+    template<class T, T... I> using mp_list_c =
+        mp_list<std::integral_constant<T, I>...>;
+
+`mp_list_c` produces an `mp_list` of the `std::integral_constant` types corresponding to its integer template arguments.
+
+.Using mp_list_c
+```
+using L1 = mp_list_c<int, 2, 3>; // mp_list<mp_int<2>, mp_int<3>>
+```
+
 ## mp_is_list<L>
 
     template<class L> using mp_is_list = /*...*/;