OptimizedInboxTextEncoder
public OperationStatus Encode(ReadOnlySpan<char> source, Span<char> destination, out int charsConsumed, out int charsWritten, bool isFinalBlock)
public OperationStatus EncodeUtf8(ReadOnlySpan<byte> source, Span<byte> destination, out int bytesConsumed, out int bytesWritten, bool isFinalBlock)
public bool TryEncodeUnicodeScalar(int unicodeScalar, Char* buffer, int bufferLength, out int numberOfCharactersWritten)