Added AboutDialog

Author: simasch

PlsqlDeveloperUtPlsqlPlugin/PlsqlDeveloperUtPlsqlPlugin/AboutDialog.Designer.cs

@@ -0,0 +1,24 @@
+using System.Windows.Forms;
+
+namespace PlsqlDeveloperUtPlsqlPlugin
+{
+    public partial class AboutDialog : Form
+    {
+        public AboutDialog()
+        {
+            InitializeComponent();
+
+            CenterToScreen();
+        }
+
+        private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
+        {
+            System.Diagnostics.Process.Start("https://github.com/utPLSQL/utPLSQL-PLSQL-Developer");
+        }
+
+        private void button1_Click(object sender, System.EventArgs e)
+        {
+            Close();
+        }
+    }
+}