Info/Admin APIs

[gsmachado]

This feature aims to create APIs to provide the following:

• Get campaign info about an ICO: e.g., how much was already invested, how many tokens sold, etc/
• Get the information about an investor specifying the email address
• Get investor's info of those who invested more than X amount
• Get the list of emails sent to an investor
• Get all the transactions/payments made by the investor
• Get the failed transactions/payments made by the investor
• Get a CSV file with ALL investors and the tokens
• Get a CSV file with ALL transactions/payments (including investor info)
• Get all the public keys/addresses in the keypairs pool

More info/admin APIs can be added during the development of such feature.