Support C++20 module.

include/magic_enum/magic_enum.cppm

@@ -0,0 +1,56 @@
+module;
+
+#include <magic_enum_all.hpp>
+
+export module magic_enum;
+
+export namespace magic_enum {
+namespace customize {
+    using customize::enum_range;
+}
+
+namespace iostream_operators {
+    using iostream_operators::operator<<;
+    using iostream_operators::operator>>;
+}
+
+namespace bitwise_operators {
+    using bitwise_operators::operator~;
+    using bitwise_operators::operator|;
+    using bitwise_operators::operator&;
+    using bitwise_operators::operator^;
+    using bitwise_operators::operator|=;
+    using bitwise_operators::operator&=;
+    using bitwise_operators::operator^=;
+}
+
+namespace containers {
+    using containers::array;
+    using containers::bitset;
+    using containers::set;
+}
+
+    using magic_enum::enum_name;
+    using magic_enum::enum_cast;
+    using magic_enum::enum_value;
+    using magic_enum::enum_values;
+    using magic_enum::enum_count;
+    using magic_enum::enum_integer;
+    using magic_enum::enum_names;
+    using magic_enum::enum_entries;
+    using magic_enum::enum_fuse;
+    using magic_enum::enum_switch;
+    using magic_enum::enum_for_each;
+    using magic_enum::enum_contains;
+    using magic_enum::enum_index;
+    using magic_enum::enum_flags_name;
+    using magic_enum::enum_flags_contains;
+    using magic_enum::enum_flags_cast;
+    using magic_enum::enum_type_name;
+    using magic_enum::is_unscoped_enum;
+    using magic_enum::is_unscoped_enum_v;
+    using magic_enum::is_scoped_enum;
+    using magic_enum::is_scoped_enum_v;
+    using magic_enum::underlying_type;
+    using magic_enum::underlying_type_t;
+}