Pull in translations from Transifex

[1ec5]

This library should pull translations directly from Transifex and convert them into plist format to complement the existing English plist. This should be done as a build step to keep developers from having to access the Transifex API every time they run carthage bootstrap.

/cc @frederoni @freenerd

[freenerd]

Given that we would not walk lock-step with osrm-text-instructions anymore, this would break the integration tests (which are built by the javascript osrm-text-instructions).

[1ec5]

Another option is to pull in osrm-text-instructions as a submodule, but we’ll want to make sure that affects only our development process and doesn’t have any impact post-build (like when a developer integrates the framework). Either way, we’ll need to coordinate PRs that update translations between both repositories. (I’d like to avoid maintaining a separate suite of integration tests here if possible.)