--User changes

-Add variations filter/selection dialog.

--Bug fixes
 -Fix summary window not properly indicating the presence of pose affine.
 -Remove a file named Fractorium.aps which had been erroneously committed a year ago.

--Code changes
 -Use qobject_cast instead of dynamic_cast where appropriate.
 -Add more override keyword where appropriate.
 -Add variations list to settings for filter dialog.

Source/Fractorium/VariationsDialog.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include "ui_VariationsDialog.h"
+#include "FractoriumSettings.h"
+
+/// <summary>
+/// FractoriumVariationsDialog class.
+/// </summary>
+
+/// <summary>
+/// The variations filter dialog displays several columns
+/// with the different types of variations shown as checkboxes.
+/// This is used to filter the variations that are shown in the main window
+/// because the list is very long.
+/// The results are stored in a map and returned.
+/// These are used in conjunction with the filter edit box to filter what's shown.
+/// </summary>
+class FractoriumVariationsDialog : public QDialog
+{
+	Q_OBJECT
+public:
+	FractoriumVariationsDialog(FractoriumSettings* settings, QWidget* p = nullptr, Qt::WindowFlags f = nullptr);
+	const QMap<QString, QVariant>& Map();
+	void ForEachCell(std::function<void(QTableWidgetItem* cb)> func);
+	void ForEachSelectedCell(std::function<void(QTableWidgetItem* cb)> func);
+	void SyncSettings();
+
+public slots:
+	void OnSelectAllButtonClicked(bool checked);
+	void OnInvertSelectionButtonClicked(bool checked);
+	void OnSelectNoneButtonClicked(bool checked);
+	void Accept();
+	void OnVariationsTableItemChanged(QTableWidgetItem* item);
+
+protected:
+	virtual void showEvent(QShowEvent* e) override;
+
+private:
+	void MapToCheckBoxes();
+	void CheckBoxesToMap();
+	void Populate();
+	void SetCheckFromMap(QTableWidgetItem* cb, const Variation<float>* var);
+	VariationList<float> m_VariationList;
+	QMap<QString, QVariant> m_Vars;
+	FractoriumSettings* m_Settings;
+	Ui::VariationsDialog ui;
+};