Not scanned every cards

[Slake07]

General information

• SDK/Library version: 5.5.0
• Android Version and Device: Moto G4 with Android 7.0

Issue description

I am using this library for scanning credit cards. but it only scanned those cards whose card numbers written in steel and not scanning those card numbers are written normally with black ink.

[e-vorotnikov]

Have similar problem here. Chase bank is switching to put CC numbers on back of credit cards so it started to be much more popular now days to have number written on a back of card. Is there any plans to support more formats?