scope_guard: add package (#2513)

packages/s/scope_guard/xmake.lua

@@ -0,0 +1,22 @@
+package("scope_guard")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/Neargye/scope_guard")
+    set_description("Scope Guard & Defer C++")
+    set_license("MIT")
+
+    add_urls("https://github.com/Neargye/scope_guard.git")
+    add_versions("2022.04.05", "fa60305b5805dcd872b3c60d0bc517c505f99502")
+
+    on_install(function (package)
+        os.cp("include", package:installdir())
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <scope_guard.hpp>
+            void test() {
+                int* x = new int;
+                SCOPE_EXIT{ delete x; };
+            }
+        ]]}, {configs = {languages = "c++11"}}))
+    end)