Refactoring operation name : extract method

Refactoring object : makeBytes(byte[] data)

Reason : part of code has possibility to change so, make this
part to method(changeByteToSegment).

java/src/main/java/io/nayuki/qrcodegen/QrSegment.java

@@ -62,10 +62,14 @@ public final class QrSegment {
 		Objects.requireNonNull(data);
 		BitBuffer bitBuffer = new BitBuffer();
 		for (byte one_byte : data)
-			bitBuffer.appendBits(one_byte & 0xFF, 8);
+			changeByteToSegment(bitBuffer, one_byte);
 		return new QrSegment(QrSegment.Mode.BYTE, data.length, bitBuffer);
 	}
 	
+	public static void changeByteToSegment(BitBuffer bitBuffer, byte one_byte) {
+		bitBuffer.appendBits(one_byte & 0xFF, 8);
+	}
+	
 	
 	/**
 	 * Returns a segment representing the specified string of decimal digits encoded in numeric mode.