Add error/EULA applet

include/applets/error_applet.hpp

@@ -0,0 +1,15 @@
+#include <string>
+
+#include "applets/applet.hpp"
+
+namespace Applets {
+	class ErrorApplet final : public AppletBase {
+	  public:
+		virtual const char* name() override { return "Error/EULA Agreement"; }
+		virtual Result::HorizonResult start(const MemoryBlock* sharedMem, const std::vector<u8>& parameters, u32 appID) override;
+		virtual Result::HorizonResult receiveParameter(const Applets::Parameter& parameter) override;
+		virtual void reset() override;
+
+		ErrorApplet(Memory& memory, std::optional<Parameter>& nextParam) : AppletBase(memory, nextParam) {}
+	};
+}  // namespace Applets