Add an anonymized access

[hgwood]

Currently, the only way to request data from Proxybeez is too ask for a key and have a good reason to use the data. It would be useful for dev to have a version of the API that can be requested without a key, but that only has anonymous data (no names, no emails).

However we probably don't want to open this API to the internet so we need 2 types of keys. Can Tyk manage that for us?

[hgwood]

Allowing an access with no keys to real data, even anonymized is too dangerous so I won't be doing that. However, an access to anonymized data with a key is something that's interesting for development. Developers would have anonymized real data when developing locally, and the data would be non-anonymized once in prod (different key).