Relocate Blob, Buffer, and DataChain to Memory.

Memory/Blob.test/0.cc

@@ -0,0 +1,25 @@
+static_assert( __cplusplus > 2020'99 );
+
+#include "../Blob.h"
+
+#include <Alepha/Testing/test.h>
+
+#include <Alepha/Utility/evaluation_helpers.h>
+
+static auto init= Alepha::Utility::enroll <=[]
+{
+	using namespace Alepha::Testing::literals::test_literals;
+	"Simple carve head test"_test <=[]
+	{
+		Alepha::Blob b{ 1024 };
+
+		auto b2= b.carveHead( 256 );
+
+		assert( b.size() == 768 );
+		assert( b2.size() == 256 );
+
+		std::string h= "Hello world";
+
+		copyData( b2, Alepha::make_buffer( h ) );
+	};
+};

Memory/Blob.test/CMakeLists.txt

@@ -0,0 +1 @@
+unit_test( 0 )