Add API to register new macro condition and action types

lib/macro/macro-action-script.hpp

@@ -0,0 +1,29 @@
+#pragma once
+#include "macro-action-edit.hpp"
+#include "macro-script-handler.hpp"
+#include "macro-segment-script.hpp"
+
+namespace advss {
+
+class MacroActionScript : public MacroAction, public MacroSegmentScript {
+public:
+	MacroActionScript(Macro *m, const std::string &id,
+			  const OBSData &defaultSettings,
+			  const std::string &propertiesSignalName,
+			  const std::string &triggerSignal,
+			  const std::string &signalComplete);
+	MacroActionScript(const advss::MacroActionScript &);
+	bool PerformAction();
+	void LogAction() const;
+	bool Save(obs_data_t *obj) const;
+	bool Load(obs_data_t *obj);
+	std::string GetId() const { return _id; };
+	std::shared_ptr<MacroAction> Copy() const;
+
+private:
+	void WaitForCompletion() const;
+
+	std::string _id = "";
+};
+
+} // namespace advss