power On
Powers on the contact interface.
This function attempts to power on the contact interface and retrieve information from the inserted smart card.
Return
An br.com.gertec.nexus.domain.ct.model.EmvCTCardInfo object containing information about the card, such as ATR (Answer to Reset).
Throws
if there is an error during the power-on process, for example, if no card is present or if communication with the card fails.