LYN-4946 | Merge Game Mode buttons in the Play Controls toolbar (#5557)

* LYN-4946 Double play buttons - Tranformer style into one.

Signed-off-by: sphrose <82213493+sphrose@users.noreply.github.com>

* compile fix

Signed-off-by: sphrose <82213493+sphrose@users.noreply.github.com>

* Changes as per review.

Signed-off-by: sphrose <82213493+sphrose@users.noreply.github.com>

* Address minor confusion points.

Signed-off-by: Danilo Aimini <82231674+AMZN-daimini@users.noreply.github.com>

* Fix rename operation missing some matches...

Signed-off-by: Danilo Aimini <82231674+AMZN-daimini@users.noreply.github.com>

* Remove extra newline.

Signed-off-by: Danilo Aimini <82231674+AMZN-daimini@users.noreply.github.com>

Co-authored-by: sphrose <82213493+sphrose@users.noreply.github.com>

Code/Editor/ToolbarManager.h

@@ -87,6 +87,7 @@ public:
     const QString& GetTranslatedName() const { return m_translatedName; }
 
     void AddAction(int actionId, int toolbarVersionAdded = 0);
+    void AddWidget(QWidget* widget, int actionId, int toolbarVersionAdded = 0);
 
     QToolBar* Toolbar() const { return m_toolbar; }
 
@@ -117,6 +118,7 @@ private:
     {
         int actionId;
         int toolbarVersionAdded;
+        QWidget* widget;
 
         bool operator ==(const AmazonToolbar::ActionData& other) const
         {
@@ -133,7 +135,9 @@ private:
 class AmazonToolBarExpanderWatcher;
 
 class ToolbarManager
+    : public QObject
 {
+    Q_OBJECT
 public:
     explicit ToolbarManager(ActionManager* actionManager, MainWindow* mainWindow);
     ~ToolbarManager();
@@ -178,6 +182,8 @@ private:
     void UpdateAllowedAreas(QToolBar* toolbar);
     bool IsDirty(const AmazonToolbar& toolbar) const;
 
+    QMenu* CreatePlayButtonMenu() const;
+
     const AmazonToolbar* FindDefaultToolbar(const QString& toolbarName) const;
     AmazonToolbar* FindToolbar(const QString& toolbarName);