Move more string-related extensions

SabreTools.Text.Extensions/ByteArrayWriterExtensions.cs

@@ -9,6 +9,8 @@ namespace SabreTools.Text.Extensions
     /// </summary>
     public static class ByteArrayWriterExtensions
     {
+        #region Write Null Terminated
+
         /// <summary>
         /// Write a null-terminated string to the array
         /// </summary>
@@ -62,6 +64,10 @@ namespace SabreTools.Text.Extensions
         public static bool WriteNullTerminatedUTF32String(this byte[] content, ref int offset, string? value)
             => content.WriteNullTerminatedString(ref offset, value, Encoding.UTF32);
 
+        #endregion
+
+        #region Write Prefixed
+
         /// <summary>
         /// Write a byte-prefixed ASCII string to the byte array
         /// </summary>
@@ -144,6 +150,8 @@ namespace SabreTools.Text.Extensions
             return WriteFromBuffer(content, ref offset, buffer);
         }
 
+        #endregion
+
         /// <summary>
         /// Write an array of bytes to the byte array
         /// </summary>