Add ScriptInterfaceLevel. Move ScriptInterfaceGame and GameScriptLevel to Scripting.

Scripting/include/ScriptInterfaceLevel.h

@@ -0,0 +1,16 @@
+#pragma once
+
+enum class WeatherType
+{
+	None,
+	Rain,
+	Snow
+};
+
+class ScriptInterfaceLevel {
+public:
+	virtual ~ScriptInterfaceLevel() = default;
+
+	virtual bool GetSkyLayerEnabled(int index) = 0;
+	virtual short GetSkyLayerSpeed(int index) = 0;
+};