Add a serialization wrapper for PhysicalUIMap

Which we'll need for INoteExpressionPhysicalUIMapping.

src/common/serialization/vst3/physical-ui-map-list.cpp

@@ -0,0 +1,29 @@
+// yabridge: a Wine VST bridge
+// Copyright (C) 2020-2021 Robbert van der Helm
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "physical-ui-map-list.h"
+
+YaPhysicalUIMapList::YaPhysicalUIMapList() {}
+
+YaPhysicalUIMapList::YaPhysicalUIMapList(
+    const Steinberg::Vst::PhysicalUIMapList& list)
+    : maps(list.map, list.map + list.count) {}
+
+Steinberg::Vst::PhysicalUIMapList YaPhysicalUIMapList::get() {
+    return Steinberg::Vst::PhysicalUIMapList{
+        .count = static_cast<Steinberg::uint32>(maps.size()),
+        .map = maps.data()};
+}