Add stat middleware to all endpoint

[jeremyletang]

This endpoint will allow us to collect usage informations about our api. Nothingto track ou user. But at leastwe want to know the how many people areuainf each version of the api in order to calculate the impact of possible changes or deprecation for a specific version

[jeremyletang]

@crufter, @anas10 what doyou think about this.

[crufter]

@jeremyletang makes sense. can implement it with analytics, all the pieces are there