Additional documentation
1. Result codes
OK = 0
NOT_INITIALIZATED = 1
LICENSE_INVALID = 2
LICENSE_EXPIRED = 3
LICENSE_ERROR = 4
NO_DOCUMENT_DETECTED = 5
DOCUMENT_TOO_SMALL = 6
DOCUMENT_TOO_FAR = 7
DOCUMENT_TOO_CLOSE = 8
DOCUMENT_WRONG_ASPECT_RATIO = 9
DOCUMENT_CLOSE_TO_BORDER = 10
DOCUMENT_TOO_MUCH_ROLL = 11
DOCUMENT_NOT_CENTRAL = 12
IQA_BLURRED = 13
IQA_OVEREXPOSED = 14
IQA_UNDEREXPOSED = 15
IQA_NOISE = 16
IQA_HIGHLIGHTS = 17
WRONG_ALIGNMENT = 18
SPOOF_BORDER = 19
SPOOF_SOURCE = 20