NFC polling interval

This is a request to surface a property for the polling interval for QNearFieldManager::targetDetected().

QPcscManager::onStateUpdate() is only polled every second, currently controlled by StateUpdateIntervalMs 

static constexpr int StateUpdateIntervalMs = 1000; 

Our contactless nfc reader polls every 10 msecs. Since our nfc reader beeps when it detects a card the user usually removes the card before the program detects it but they assume the operation has completed.

It would be useful if the interval could be surfaced, perhaps as an additional parameter in QNearFieldManager::startTargetDetection(). If not perhaps the interval could be shortened to 50 or 100 msecs as I think 1 second is too long as a default interval, at least, for NFC tap operations.