crstl: add package (#4414)

packages/c/crstl/xmake.lua

@@ -0,0 +1,19 @@
+package("crstl")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/redorav/crstl")
+    set_description("STL whose aim is to compile fast, run fast, and be clear to read")
+
+    add_urls("https://github.com/redorav/crstl.git")
+    add_versions("2024.06.04", "0c31b6c76ff74521b2f50b1643f8f3d207184c6c")
+
+    on_install(function (package)
+        os.cp("include", package:installdir())
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            void test() {
+                crstl::fixed_vector<int, 32> v;
+            }
+        ]]}, {configs = {languages = "c++11"}, includes = {"crstl/fixed_vector.h"}}))
+    end)