To support the open source community, which may want to use different analytics services, we implement a soy template for analytics services that:
1) Does not require users to implement Google Analytics
2) Allows users to add their own analytics code to `Analytics.soy`
3) Gives users the flexibility to pass as much or as little static configuration to their custom analytics code as needed.
4) Ensures that users can merge upstream Nomulus code in the future without having to delete their custom analytics implementations
5) Does not allow code to be injected from configuration, which Soy as a framework actively discourages.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=248340081