ConnectionManager overhaul

- connection settings are now changed by seperate component currently called in a seperate window
- old settings pane on the right of the connections had been removed
- new edit config button added between new connection and remove connection

pglab/SslModeModel.h

@@ -0,0 +1,20 @@
+#ifndef SSLMODEMODEL_H
+#define SSLMODEMODEL_H
+
+#include <QAbstractListModel>
+
+class SslModeModel : public QAbstractListModel
+{
+	Q_OBJECT
+public:
+	enum Column { Name, Description, ColCount };
+
+	SslModeModel(QObject *parent = nullptr);
+
+	int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+	int columnCount(const QModelIndex &parent = QModelIndex()) const override;
+	QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+
+};
+
+#endif // SSLMODEMODEL_H