Add PlayerPreLoginEvent (#8)

* PlayerPreLoginEvent, comments for more events

* basic plugin events

* plugin failed to load event

* add docs

---------

Co-authored-by: sylvessa <225480449+sylvessa@users.noreply.github.com>

Minecraft.Server.FourKit/Event/Player/PlayerPreLoginEvent.cs

@@ -0,0 +1,40 @@
+namespace Minecraft.Server.FourKit.Event.Player;
+
+using Minecraft.Server.FourKit.Net;
+
+/// <summary>
+/// Stores details for players attempting to log in.
+/// </summary>
+public class PlayerPreLoginEvent : Event, Cancellable
+{
+    private string name;
+    private InetSocketAddress ipAddress; //bukkit uses InetAddress but we expose port also
+    private bool _cancelled;
+
+
+    internal PlayerPreLoginEvent(string name, InetSocketAddress ipAddress) : base()
+    {
+        this.name = name;
+        this.ipAddress = ipAddress;
+    }
+
+
+    /// <summary>
+    /// Gets the player's name.
+    /// </summary>
+    /// <returns>The player's name.</returns>
+    public string getName() => name;
+
+
+    /// <summary>
+    /// Gets the player IP address.
+    /// </summary>
+    /// <returns>The IP address.</returns>
+    public InetSocketAddress getAddress() => ipAddress;
+
+    /// <inheritdoc/>
+    public bool isCancelled() => _cancelled;
+
+    /// <inheritdoc/>
+    public void setCancelled(bool cancel) => _cancelled = cancel;
+}