Add row and column accessors for tables and grids

src/Spectre.Console/Extensions/ColumnExtensions.cs

@@ -24,5 +24,24 @@ namespace Spectre.Console
             obj.NoWrap = true;
             return obj;
         }
+
+        /// <summary>
+        /// Sets the width of the column.
+        /// </summary>
+        /// <typeparam name="T">An object implementing <see cref="IColumn"/>.</typeparam>
+        /// <param name="obj">The column.</param>
+        /// <param name="width">The column width.</param>
+        /// <returns>The same instance so that multiple calls can be chained.</returns>
+        public static T Width<T>(this T obj, int? width)
+            where T : class, IColumn
+        {
+            if (obj is null)
+            {
+                throw new ArgumentNullException(nameof(obj));
+            }
+
+            obj.Width = width;
+            return obj;
+        }
     }
 }