par: add package (#8054)

packages/p/par/xmake.lua

@@ -0,0 +1,16 @@
+package("par")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/prideout/par")
+    set_description("single-file C libraries from Philip Allan Rideout")
+
+    add_urls("https://github.com/prideout/par.git")
+
+    add_versions("2022.08.06", "24f26c12926b746db5814de759163144ad79843a")
+
+    on_install(function (package)
+        os.cp("*.h", package:installdir("include"))
+    end)
+
+    on_test(function (package)
+        assert(package:has_cfuncs("par_shapes_create_parametric_sphere", {includes = "par_shapes.h"}))
+    end)