Fixed forgotten #include statements.

Author: ww898

include/ww898/cp_utf16.hpp

@@ -26,6 +26,7 @@
 
 #include <cstdint>
 #include <stdexcept>
+#include <utility>
 
 namespace ww898 {
 namespace utf {

include/ww898/cp_utf32.hpp

@@ -26,6 +26,7 @@
 
 #include <cstdint>
 #include <stdexcept>
+#include <utility>
 
 namespace ww898 {
 namespace utf {

include/ww898/cp_utf8.hpp

@@ -26,6 +26,7 @@
 
 #include <cstdint>
 #include <stdexcept>
+#include <utility>
 
 namespace ww898 {
 namespace utf {

include/ww898/utf_config.hpp

@@ -24,6 +24,8 @@
 
 #pragma once
 
+#include <cstdint>
+
 // Normally `__cpp_lib_string_view` should be defined in string header
 #include <string>
 

include/ww898/utf_converters.hpp

@@ -28,6 +28,9 @@
 #include <ww898/utf_config.hpp>
 
 #include <cstdint>
+#include <stdexcept>
+#include <utility>
+#include <type_traits>
 #include <iterator>
 #include <string>
 

include/ww898/utf_sizes.hpp

@@ -28,6 +28,8 @@
 #include <ww898/utf_config.hpp>
 
 #include <cstddef>
+#include <stdexcept>
+#include <type_traits>
 #include <iterator>
 #include <string>