pl_mpeg: add package (#4626)

packages/p/pl_mpeg/xmake.lua

@@ -0,0 +1,16 @@
+package("pl_mpeg")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/phoboslab/pl_mpeg")
+    set_description("Single file C library for decoding MPEG1 Video and MP2 Audio")
+    set_license("MIT")
+
+    set_urls("https://github.com/phoboslab/pl_mpeg.git")
+    add_versions("2024.04.12", "9e40dd6536269d788728e32c39bfacf2ab7a0866")
+
+    on_install(function (package)
+        os.cp("pl_mpeg.h", package:installdir("include"))
+    end)
+
+    on_test(function (package)
+        assert(package:has_cfuncs("plm_create_with_filename", {includes = "pl_mpeg.h"}))
+    end)