Add Google GenericPass functionality

[kerattila]

Hi,

This PR's scope is to add GenericPass functionality as described in the Google Wallet API Docs: https://developers.google.com/wallet/generic

The PR was implemented based on the following matrix. Unfortunately i could not find FlightClass and FlightObject in the current docs.

Classes:

	Abstract	GenericClass	EventTicketClass	GiftCardClass	LoyaltyCardClass	OfferClass	TransitClass	FlightClass
id	x	x	x	x	x	x	x
classTemplateInfo	x	x	x	x	x	x	x
imageModulesData	x	x	x	x	x	x	x
textModulesData	x	x	x	x	x	x	x
linksModuleData	x	x	x	x	x	x	x
enableSmartTap	x	x	x	x	x	x	x
redemptionIssuers	x	x	x	x	x	x	x
securityAnimation	x	x	x	x	x	x	x
multipleDevicesAndHoldersAllowedStatus	x	x	x	x	x	x	x
callbackOptions	x	x	x	x	x	x	x
viewUnlockRequirement	x	x	x	x	x	x	x
eventName			x
eventId			x
logo			x
venue			x
dateTime			x
confirmationCodeLabel			x
customConfirmationCodeLabel			x
seatLabel			x
customSeatLabel			x
rowLabel			x
customRowLabel			x
sectionLabel			x
customSectionLabel			x
gateLabel			x
customGateLabel			x
finePrint			x
version			x
issuerName			x	x	x	x	x
messages			x	x	x	x	x
allowMultipleUsersPerObject			x	x	x	x	x
homepageUri			x	x	x	x	x
locations			x	x	x	x	x
reviewStatus			x	x	x	x	x
review			x	x	x	x	x
infoModuleData			x	x	x	x	x
countryCode			x	x	x	x	x
heroImage			x	x	x	x	x
wordMark			x	x	x	x	x
hexBackgroundColor			x	x	x	x	x
localizedIssuerName			x	x	x	x	x
merchantName				x
programLogo				x	x
pinLabel				x
eventNumberLabel				x
allowBarcodeRedemption				x
localizedMerchantName				x
localizedPinLabel				x
localizedEventNumberLabel				x
cardNumberLabel				x
localizedCardNumberLabel				x
programName					x
accountNameLabel					x
accountIdLabel					x
rewardsTierLabel					x
rewardsTier					x
localizedProgramName					x
localizedAccountNameLabel					x
localizedAccountIdLabel					x
localizedRewardsTierLabel					x
localizedRewardsTier					x
secondaryRewardsTierLabel					x
localizedSecondaryRewardsTierLabel					x
secondaryRewardsTier					x
localizedSecondaryRewardsTier					x
discoverableProgram					x
title						x
redemptionChannel						x
provider						x
titleImage						x
details						x
finePrint						x
helpUri						x
localizedTitle						x
localizedProvider						x
localizedDetails						x
localizedFinePrint						x
shortTitle						x
localizedShortTitle						x
localScheduledDepartureDateTime							x
localEstimatedOrActualDepartureDateTime							x
localBoardingDateTime							x
localScheduledArrivalDateTime							x
localEstimatedOrActualArrivalDateTime							x
flightHeader							x
origin							x
destination							x
flightStatus							x
boardingAndSeatingPolicy							x
localGateClosingDateTime							x
languageOverride							x

Objects:

	Abstract	GenericObject	EventTicketObject	GiftCardObject	LoyaltyCardObject	OfferObject	TransitObject	FlightObject
cardTitle		x
subheader		x
header		x
logo		x
notifications		x
hexBackgroundColor		x	x				x
id	x	x	x	x	x	x	x
classId	x	x	x	x	x	x	x
barcode	x	x	x	x	x	x	x
heroImage	x	x	x	x	x	x	x
validTimeInterval	x	x	x	x	x	x	x
imageModulesData	x	x	x	x	x	x	x
textModulesData	x	x	x	x	x	x	x
linksModuleData	x	x	x	x	x	x	x
appLinkData	x	x	x	x	x	x	x
groupingInfo	x	x	x	x	x	x	x
smartTapRedemptionValue	x	x	x	x	x	x	x
rotatingBarcode	x	x	x	x	x	x	x
state	x	x	x	x	x	x	x
hasUsers	x	x	x	x	x	x	x
classReference			x	x	x	x	x
seatInfo			x
reservationInfo			x
ticketHolderName			x
ticketNumber			x				x
ticketType			x
faceValue			x
linkedOfferIds			x		x
messages			x	x	x	x	x
locations			x	x	x	x	x
hasLinkedDevice			x	x	x	x	x
disableExpirationNotification			x	x	x	x	x
infoModuleData			x	x	x	x	x
cardNumber				x
pin				x
balance				x
balanceUpdateTime				x
eventNumber				x
accountName					x
accountId					x
loyaltyPoints					x
secondaryLoyaltyPoints					x
passengerType							x
passengerNames							x
tripId							x
ticketStatus							x
customTicketStatus							x
concessionCategory							x
customConcessionCategory							x
ticketRestrictions							x
purchaseDetails							x
ticketLeg							x
ticketLegs							x
tripType							x

[chiiya]

Thank you so much :pray:

I'll try to get to this as soon I can, hopefully some time next week.

[chiiya]

Thanks! Released as 0.4.0