Improve xmake build

examples/RenderTest/build.lua

@@ -1,15 +0,0 @@
-EXAMPLE.Name = "RenderTest"
-
-EXAMPLE.EnableConsole = true
-
-EXAMPLE.Files = {
-	"main.cpp"
-}
-
-EXAMPLE.Libraries = {
-	"NazaraCore",
-	"NazaraPlatform",
-	"NazaraRenderer",
-	"NazaraShader",
-	"NazaraUtility"
-}

examples/RenderTest/xmake.lua

@@ -0,0 +1,5 @@
+target("RenderTest")
+	set_group("Examples")
+	set_kind("binary")
+	add_deps("NazaraRenderer")
+	add_files("main.cpp")