start implementation of multicam panel

app/panel/multicam/CMakeLists.txt

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+# Olive - Non-Linear Video Editor
+# Copyright (C) 2022 Olive Team
+#
+# 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 <http://www.gnu.org/licenses/>.
+
+set(OLIVE_SOURCES
+  ${OLIVE_SOURCES}
+  panel/multicam/multicampanel.h
+  panel/multicam/multicampanel.cpp
+  PARENT_SCOPE
+)

app/panel/multicam/multicampanel.cpp

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+#include "multicampanel.h"
+
+namespace olive {
+
+#define super PanelWidget
+
+MulticamPanel::MulticamPanel(ViewerPanelBase *sibling, QWidget *parent) :
+  super(QStringLiteral("MultiCamPanel"), parent)
+{
+  widget_ = new MulticamWidget();
+  SetWidgetWithPadding(widget_);
+
+  connect(sibling, &ViewerPanelBase::ColorManagerChanged, widget_, &MulticamWidget::ConnectColorManager);
+  widget_->ConnectCacher(static_cast<ViewerWidget*>(sibling->GetTimeBasedWidget())->GetCacher());
+
+  Retranslate();
+}
+
+void MulticamPanel::Retranslate()
+{
+  super::Retranslate();
+
+  SetTitle(tr("Multi-Cam"));
+}
+
+}

app/panel/multicam/multicampanel.h

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+#ifndef MULTICAMPANEL_H
+#define MULTICAMPANEL_H
+
+#include "panel/viewer/viewerbase.h"
+#include "widget/multicam/multicamwidget.h"
+#include "widget/panel/panel.h"
+
+namespace olive {
+
+class MulticamPanel : public PanelWidget
+{
+  Q_OBJECT
+public:
+  MulticamPanel(ViewerPanelBase *sibling, QWidget* parent = nullptr);
+
+  void SetNode(MultiCamNode *n)
+  {
+    widget_->SetNode(n);
+  }
+
+public slots:
+  void SetTime(const rational &t)
+  {
+    widget_->SetTime(t);
+  }
+
+protected:
+  virtual void Retranslate() override;
+
+private:
+  MulticamWidget *widget_;
+
+};
+
+}
+
+#endif // MULTICAMPANEL_H