Rearchitecture Project Manager Screens Workflow and Create Project Settings Ctrl

* Renamed UX screen files and classes to include screen in the name

* Changed screens to emit a screen change request a controller can connect to

* Made ScreensCtrl that owns and manages screens and their changing and history

* Made Project Settings Control managing back and next buttons

* Add Project Setting Model and moved New Project Settings Ui into Screen file

* Goto previous screen always works

* Removed unnecessary QObject namespace from connect calls

* Merged ProjectSettingsModel into ProjectInfo

Code/Tools/ProjectManager/Source/EngineSettingsScreen.cpp

@@ -0,0 +1,30 @@
+/*
+ * All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+ * its licensors.
+ *
+ * For complete copyright and license terms please see the LICENSE at the root of this
+ * distribution (the "License"). All use of this software is governed by the License,
+ * or, if provided, by the license below or the license accompanying this file. Do not
+ * remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ */
+
+#include <EngineSettingsScreen.h>
+
+#include <Source/ui_EngineSettingsScreen.h>
+
+namespace O3DE::ProjectManager
+{
+    EngineSettingsScreen::EngineSettingsScreen(QWidget* parent)
+        : ScreenWidget(parent)
+        , m_ui(new Ui::EngineSettingsClass())
+    {
+        m_ui->setupUi(this);
+    }
+
+    ProjectManagerScreen EngineSettingsScreen::GetScreenEnum()
+    {
+        return ProjectManagerScreen::EngineSettings;
+    }
+} // namespace O3DE::ProjectManager