Porting Request to Update Zxing -CPP for Datamatrix ECC200

[sathishcse7]

Please Update Zxing cpp file (porting) for updated code . For Datamatrix ECC200 decoding and PDf417 code.

[axxel]

In case you are still in need for those features: you might want to look at a completely new c++ port of the Java code that features both PDF417 and ECC2000: https://github.com/nu-book/zxing-cpp