refactor xmake scripts

xmake/godot.lua

@@ -0,0 +1,26 @@
+------- project settings -------
+
+-- project name
+set_project(PROJECT_NAME)
+
+-- project version
+set_version(VERSION)
+
+-- min version of xmake we need to run
+-- NOTE: this is the version i used to develop this template, may not 100% correct
+set_xmakever("2.9.0")
+
+add_rules("mode.debug", "mode.release")
+
+-- c++17 is required for godot 4.x, we use c++20 here
+set_languages("c++20")
+
+-- use latest 4.x version by default
+add_requires("godotcpp4")
+
+
+includes("tasks.lua")
+
+includes("target.lua")
+
+includes("editor.lua")