Starting out Alepha from scratch, as a C++17 effort.

This one is going to be prepped for GitHub private, from the get
go.  This initial commit has some evaluation helpers and the
unit testing infrastructure.  `TableTest` will come next.

Utility/evaluation.h

@@ -0,0 +1,48 @@
+static_assert( __cplusplus > 201700, "C++17 Required" );
+
+#pragma once
+
+#include <Alepha/Alepha.h>
+
+#include <tuple>
+#include <utility>
+
+namespace Alepha::Hydrogen::Utility
+{
+	inline namespace exports { inline namespace evaluation {} }
+
+	namespace detail::evaluation
+	{
+		struct evaluate_t {};
+		struct enroll_t {};
+
+		inline namespace exports
+		{
+			inline constexpr evaluate_t evaluate;
+			inline constexpr enroll_t enroll;
+		}
+
+		template< typename Function >
+		decltype( auto )
+		operator <=( evaluate_t, Function &&init )
+		{
+			return std::forward< Function >( init )();
+		}
+
+		template< typename Init >
+		auto
+		operator <=( enroll_t, Init init )
+		{
+			struct {} registration;
+
+			(void) ( evaluate <=init );
+
+			return registration;
+		}
+	}
+
+	namespace exports::evaluation
+	{
+		using namespace detail::evaluation::exports;
+	}
+}