[fixes #43475085] Add Barcode2D class.
Merge pull request #109 from maxigit/43475085_add_2d_barcode

[fixes #43475085] Add Barcode2D class.
[fixes #43475137] Change column type to blob
Merge pull request #110 from maxigit/43475137_check_blob_column

[fixes #43475137] Change column type to blob