Add hffix v1.1.0 (#495)

* hffix v1.1.0

* Proper platforms

* Proper platforms

* Proper platforms

* Fix typo

* Header-only kind

packages/h/hffix/xmake.lua

@@ -0,0 +1,18 @@
+package("hffix")
+
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/jamesdbrock/hffix")
+    set_description("C++ Library for FIX (Financial Information Exchange) Protocol.")
+    set_license("BSD-2-Clause")
+
+    add_urls("https://github.com/jamesdbrock/hffix/archive/refs/tags/$(version).zip",
+             "https://github.com/jamesdbrock/hffix.git")
+    add_versions("v1.1.0", "7646ddb8ca19da31a8835b64493100a0f2239c28980f590918e0b5bfab4d736d")
+
+    on_install("linux", "macosx", "bsd", function (package)
+        os.cp("include/*.hpp", package:installdir("include/hffix"))
+    end)
+
+    on_test(function (package)
+        assert(package:has_cxxtypes("hffix::message_reader", {configs = {languages = "c++11"}, includes = "hffix/hffix.hpp"}))
+    end)