PassKit docs links

[ueman]

• PassKit companion files (with sample passkit files): Click to download

• Third-Party sample passkit files: https://www.passsource.com/

• https://developer.apple.com/library/archive/documentation/UserExperience/Conceptual/PassKit_PG/index.html#//apple_ref/doc/uid/TP40012195-CH1-SW1

• https://developer.apple.com/documentation/passkit_apple_pay_and_wallet

• Wallet Human Interface Guidelines

• Wallet Passes

• Loyalty passes

• Wallet Developer Guide