Started work on splitting out .cpp files from header files

include/internal/catch_startup_exception_registry.cpp

@@ -0,0 +1,20 @@
+/*
+ *  Created by Martin on 04/06/2017.
+ *  Copyright 2017 Two Blue Cubes Ltd. All rights reserved.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+
+#include "catch_startup_exception_registry.h"
+
+namespace Catch {
+    void StartupExceptionRegistry::add( std::exception_ptr const& exception ) {
+        m_exceptions.push_back(exception);
+    }
+
+    std::vector<std::exception_ptr> const& StartupExceptionRegistry::getExceptions() const {
+        return m_exceptions;
+    }
+
+} // end namespace Catch