Remove Walletobjects.php manual dependency

[razvanphp]

Google Wallet API Client library should not be downloaded and included manually, as it is now installed by composer from github.com/google/apiclient-services, here is the source.

Also, according to Google PHP API Client UPGRADING.md, since version 2.10.0 the Google SDKs classes are namespaced so we should use those.

As discussed in #75

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[stephenmcd]

Thanks so much Razvan. As you've discovered we recently made the Wallet API available to the various cloud client libraries, and we're currently in the process of updating samples and documentation to reflect this. More than likely we'll use the work you've done here once we make all these changes available, so stay tuned and thanks again.

[razvanphp]

Oh, didn't know about the "recently" part, seems I'm here at the right time 🙂

@stephenmcd Are you from the Wallet/Pay team? I opened an issue about missing Enums in the generated PHP SDK, I'm interested in contributing this for including it my lib, do you accept contributions and can you suggest how to do this?

[johnksterling]

Oh, didn't know about the "recently" part, seems I'm here at the right time 🙂

@stephenmcd Are you from the Wallet/Pay team? I opened an issue about missing Enums in the generated PHP SDK, I'm interested in contributing this for including it my lib, do you accept contributions and can you suggest how to do this?

@razvanphp Interesting, yeah, that seems to be a cross-language thing, not just php. The discovery generators are converting them to and from strings (and even supporting various formats like snake_case camelCase etc on the way in). We can investigate why that is happening with the cloud publishing folks.