Add new about and license forms.

AboutForm.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Diagnostics;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace GameOCRTTS
+{
+    public partial class AboutForm : Form
+    {
+        public string CurrentVersion { get; private set; }
+        public AboutForm()
+        {
+            InitializeComponent();
+        }
+
+        private void AboutForm_Load(object sender, EventArgs e)
+        {
+            string process = Assembly.GetEntryAssembly().Location;
+            FileVersionInfo version = FileVersionInfo.GetVersionInfo(process);
+            CurrentVersion = $"{version.FileMajorPart}.{version.FileMinorPart}";
+            versionLabel.Text = $"version {CurrentVersion}";
+        }
+
+        private void mrflapstaartLabel_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
+        {
+            Process.Start("https://github.com/mrflapstaart");
+        }
+
+        private void wrt54gLabel_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
+        {
+            Process.Start("https://github.com/wrt54g");
+        }
+
+        private void githubpageButton_Click(object sender, EventArgs e)
+        {
+            Process.Start("https://github.com/MrFlapstaart/GameOCRTTS");
+        }
+
+        private void readmeButton_Click(object sender, EventArgs e)
+        {
+            Process.Start("https://github.com/MrFlapstaart/GameOCRTTS/blob/master/README.md");
+        }
+
+        private void changelogButton_Click(object sender, EventArgs e)
+        {
+            Process.Start($"https://github.com/MrFlapstaart/GameOCRTTS/blob/master/releases/{CurrentVersion}/CHANGELOG.md");
+        }
+
+        private void licenseButton_Click(object sender, EventArgs e)
+        {
+            LicenseForm licenseform = new LicenseForm();
+            licenseform.Show();
+        }
+    }
+}