Implement console chat visibility controls

Agent-Logs-Url: https://github.com/MCCTeam/Minecraft-Console-Client/sessions/159bd460-7950-4afe-9e69-4892220665e1

Co-authored-by: milutinke <441903+milutinke@users.noreply.github.com>

MinecraftClient/ConsoleIO.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading;
@@ -61,6 +62,11 @@ namespace MinecraftClient
         /// </summary>
         public static bool EnableTimestamps = false;
 
+        /// <summary>
+        /// Determine whether chat lines should be displayed in the console.
+        /// </summary>
+        public static bool ChatVisible = true;
+
         /// <summary>
         /// Specify a generic log line prefix for WriteLogLine()
         /// </summary>
@@ -155,6 +161,17 @@ namespace MinecraftClient
             }
         }
 
+        /// <summary>
+        /// Write a formatted chat line to the console when chat output is enabled.
+        /// </summary>
+        public static void WriteChatLineFormatted(string str, bool acceptnewlines = false, bool? displayTimestamp = null)
+        {
+            if (!ChatVisible)
+                return;
+
+            WriteLineFormatted(str, acceptnewlines, displayTimestamp);
+        }
+
         /// <summary>
         /// Write a prefixed log line. Prefix is set in LogPrefix.
         /// </summary>
@@ -178,6 +195,30 @@ namespace MinecraftClient
             Backend.ClearInputBuffer();
         }
 
+        /// <summary>
+        /// Clear the visible console output.
+        /// </summary>
+        public static void ClearConsole()
+        {
+            if (BasicIO || Backend is null)
+            {
+                try
+                {
+                    Console.Clear();
+                }
+                catch (IOException)
+                {
+                }
+                catch (PlatformNotSupportedException)
+                {
+                }
+
+                return;
+            }
+
+            Backend.ClearScreen();
+        }
+
         #endregion
 
         internal static bool AutoCompleteDone = false;