It will be uesful to openly get a Matrix array

[dubiao]

Open a Matrix interface allows users to make some stuff by themselves.
e.g. draw some round rect qr-code or store them to disk with a low space cost. etc..

QRGen/core/src/main/java/net/glxn/qrgen/core/AbstractQRCode.java

Line 85 in 1d84899

protected BitMatrix createMatrix(String text) throws WriterException {

Change above code line to :

*public* BitMatrix createMatrix(String text) throws WriterException {