Fix for issue 129 - increase default dbg console to 120

I'll also update the MaxWindowSize and MaxPhysicalWindowSize (including height) to all be consistent with the initial default size.  This is all we can do for now as we get no notifications from VSCode on console size changes.

Author: rkeithhill

src/PowerShellEditorServices/Session/SessionPSHostRawUserInterface.cs

@@ -19,7 +19,10 @@ internal class ConsoleServicePSHostRawUserInterface : PSHostRawUserInterface
     {
         #region Private Fields
 
-        private Size currentBufferSize = new Size(80, 100);
+        private const int DefaultConsoleHeight = 100;
+        private const int DefaultConsoleWidth = 120;
+
+        private Size currentBufferSize = new Size(DefaultConsoleWidth, DefaultConsoleHeight);
 
         #endregion
 
@@ -140,15 +143,15 @@ public override bool KeyAvailable
         /// </summary>
         public override Size MaxPhysicalWindowSize
         {
-            get { return new Size(80, 20); }
+            get { return new Size(DefaultConsoleWidth, DefaultConsoleHeight); }
         }
 
         /// <summary>
         /// Gets the maximum size of the console window.
         /// </summary>
         public override Size MaxWindowSize
         {
-            get { return new Size(80, 20); }
+            get { return new Size(DefaultConsoleWidth, DefaultConsoleHeight); }
         }
 
         /// <summary>