Added LogDialog and LogModel

plugins/devtoolsplugin/logdialog.cpp

@@ -0,0 +1,19 @@
+#include "logdialog.h"
+#include "ui_logdialog.h"
+
+LogDialog::LogDialog(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::LogDialog)
+{
+    ui->setupUi(this);
+}
+
+LogDialog::~LogDialog()
+{
+    delete ui;
+}
+
+void LogDialog::setModel(QAbstractItemModel *model)
+{
+    ui->treeView->setModel(model);
+}