snowhouse: add new package (#7369)

packages/s/snowhouse/xmake.lua

@@ -0,0 +1,25 @@
+package("snowhouse")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/banditcpp/snowhouse")
+    set_description("An assertion library for C++")
+    set_license("BSL-1.0")
+
+    add_urls("https://github.com/banditcpp/snowhouse/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/banditcpp/snowhouse.git")
+
+    add_versions("v5.0.0", "a1997eb1c170292bad5545ca5e65cb7c900bc49c0f9143672116777d24189b69")
+
+    on_install(function (package)
+        os.cp("include", package:installdir())
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[        
+        #include <snowhouse/snowhouse.h>
+        using namespace snowhouse;
+        void test()
+        {
+            AssertThat(420, Is().EqualTo(420));
+        }
+        ]]}, {configs = {languages = "c++11"}}))
+    end)