Add GasHopper, to fund gas for multiple chains at once, to MetaMask

[nakedwinnie]

Hey @casss,

As per Rule #6 on our Community Manifesto, please do not share requests for individual project names, instead you can share in the ConsenSys Discord.

MetaMask Community Forum Manifesto

What is the MetaMask Community Forum? The MetaMask Community Forum, community.metamask.io, is the official forum for the MetaMask community. It is where MetaMask users and developers can interact with one another and with the ConsenSys/MetaMask team. To enable this space to be as useful as possible, we have guidelines that each member of the community must agree to follow before they are allowed to post. We encourage helping others with troubles, explaining complex concepts, offering knowledge…