Create a frontend

[mikebolt]

Core features:

• Landing page with basic info about the project
• Choose configuration and generate contract source code similar to OpenZeppelin contracts wizard
• View ether and token balance of any existing contract
• Figure out the list of owned and trusted tokens then let the user automatically call splitAndWithdrawTokens

Nice to have:

• Compile and deploy contract
• Validate recipient addresses and warn about contract addresses
• Estimate dollar value of ether and tokens
• Link to an existing contract's recipient addresses