Add support for Oculus App Linking

[MortimerGoro]

I tried to test this using this code from a different app id:

ovrApplicationOptionsHandle options = ovr_ApplicationOptions_Create();
ovrID id = 2180252408763702;
ovr_ApplicationOptions_SetDeeplinkMessage(options, "https://www.mozilla.org");
ovr_Application_LaunchOtherApp(id, options);

But it shows the Oculus Store page with a update button.

[bluemarvin]

I think to test you might need to upload a build to the alpha channel?

[bluemarvin]

Also, I wanted to use JSON for the message body so we could easily add things in the future. Or even allow multiple URLs to be sent at once.

[MortimerGoro]

Ok, I'll add a json format and then we can test with alpha channel

[bluemarvin]

Great, just let me know when you are ready to test it.

[MortimerGoro]

@bluemarvin ready for testing