Change MetarSet to MetarList

CMetarSet was implemented as a collection. This only makes sense for
values which have one member variable only or hardly ever change. METARs
often change and therefore a collection didn't make much sense.
Additional profiling showed that a sequence has better algorithmic
performance.

refs #689

src/blackmisc/weather/metarlist.cpp

@@ -0,0 +1,28 @@
+/* Copyright (C) 2015
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#include "blackmisc/weather/metarlist.h"
+
+#include <tuple>
+
+namespace BlackMisc
+{
+    namespace Weather
+    {
+        CMetarList::CMetarList(const CSequence<CMetar> &other) :
+            CSequence<CMetar>(other)
+        { }
+
+        CMetar CMetarList::getMetarForAirport(const Aviation::CAirportIcaoCode &icao) const
+        {
+            return this->findFirstByOrDefault(&CMetar::getAirportIcaoCode, icao);
+        }
+
+    } // namespace
+} // namespace