winreg: add package (#2479)

packages/w/winreg/xmake.lua

@@ -0,0 +1,23 @@
+package("winreg")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/GiovanniDicanio/WinReg")
+    set_description("Convenient high-level C++ wrapper around the Windows Registry API")
+    set_license("MIT")
+
+    add_urls("https://github.com/GiovanniDicanio/WinReg/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/GiovanniDicanio/WinReg.git")
+
+    add_versions("v6.1.0", "d4118ccfd4f4edee29e0f6b3706979791ad537278e2f74818c150bb66f8fcc53")
+
+    on_install("windows", "mingw", "msys", function (package)
+        os.cp("WinReg/WinReg.hpp", package:installdir("include/WinReg"))
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <WinReg/WinReg.hpp>
+            void test() {
+                winreg::RegKey key{ HKEY_CURRENT_USER, L"SOFTWARE\\SomeKey" };
+            }
+        ]]}, {configs = {languages = "c++17"}}))
+    end)