readInt16 method
Read Int16.
Implementation
int readInt16([bool bigEndian = false]) {
final b = Uint8List.fromList(buffer.skip(_position).take(2).toList());
final endian = bigEndian ? Endian.big : Endian.little;
final x = b.buffer.asByteData().getUint16(0, endian);
_position += 2;
return x;
}