Create a faucet for the testnet

[NicolasMahe]

• It could be done in the explorer and it will create a transfer from the faucet wallet to the user address

[NicolasMahe]

Creating this faucet has open a lot of issue concerning the implementation on keybase, signing and encoding transactions in javascript.

• We need to check what is the limitation of amino-js
  • If amino-js cannot encode the same way as the engine, let's see if we can change the encoding used in the engine (txencode, txdecode)
• signature should work in js. there is a few libs that already does it
• the ABCI message could be in JSON instead of binary to ease clients to decode them

Those issue are not only related to the faucet but any client we will develop in JS

[NicolasMahe]

I forked amino-js, update it and it should now work with cosmos modules messages. Available on npm: npm i @mesg/amino-js