Add basic lua sampleù

samples/01.hello-world/lua/game.lua

@@ -0,0 +1,10 @@
+function init()
+	-- Set the title of the main window
+	Window.set_title("Hello world!")
+end
+
+function frame(dt)
+end
+
+function shutdown()
+end

samples/CMakeLists.txt

@@ -44,3 +44,7 @@ include_directories(${CROWN_INCLUDES})
 link_directories(${CROWN_BINARY_DIR} ${CROWN_THIRD_LIBS})
 
 add_subdirectory(terrain)
+
+# Install samples
+install (DIRECTORY 01.hello-world DESTINATION samples)
+