Colony metrics route

[JonathanScialpi]

• colony metrics: example in comments of CropTemplate component, new service, new route
• readme updates for blockchain
• moved IFT and Web3 folders under /backend/src/integrations/Blockchain

[rayoz12]

looks pretty good, I just made a comment about wrapping the colony apis (like what's been done for EIS as an example) but if you have time you can have a look at it.

[rayoz12]

I don't want to create extra work for you, but would it possible to wrap anything related to colony into it's own class? It would make it easier to call from other places but also test and mock colony data. It would really come down to being another class in the web3 folder that wraps around colony's api calls.

[JonathanScialpi]

Let's discuss further in a technical call and then I will create a new branch for this if needed. The reason why I'm not sure if its required is because the Colony SDK is already like a wrapper class which makes it easier to interact with colony so another class would be like a wrapper class on top of another wrapper class.

[rayoz12]

@JonathanScialpi You'll need to rebase before we can merge