PGC PAX v2.15.5

Added HSA/FSA Healthcare transactions support to the PayGuardian PAX Application for the PAX A920, A80, A60, A800 and A35 devices.

Added Car Rental transaction support to the PayGuardian PAX Application for the PAX A920, A80, A60, A800 and A35 devices.

Resolved issues with the PayGuardian application not auto-starting when device is started on Android 10 devices.

Resolved an issue with Signature Prompt when sending a payment from a POS (Postman)

Upgraded POSLink integration to V1.12.00 20220818