Add SDK v1.0.0

source/CoreFarewell/include/core/Farewell.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <string>
+
+/// @file
+/// The farewell half of the "core" module. It is a piece of core_lib that is
+/// a module of its own: an objects module (source/CoreFarewell/CMakeLists.txt),
+/// compiled to object files that the library in source/Core takes in.
+namespace demo::core
+{
+
+	/// Builds a farewell for @p name.
+	///
+	/// @param name  the person (or thing) being bid farewell.
+	/// @return a formatted farewell string, e.g. "Farewell, Ale. (from demo_core)".
+	std::string makeFarewell(const std::string& name);
+
+}