Account creation with faucet

[devbugging]

Creating a new account on testnet consists of several steps:

• creating keys using flow keys generate
• going to faucet and inserting those keys
• copying the create account back to flow.json

This process should be automated by integrating faucet into the CLI using an API. Proposed process should look like:

• running the command flow accounts create --faucet
• browser window with captcha would open (after solving it it would close)
• newly created account would automatically be saved to flow.json

In order to achieve this we need to implement a server in CLI but also support that in the faucet repo.