Add Custom Tokens

Description

Add flexibility and more user control to Tally Ho by implementing Add custom tokens functionality A successful project will look like: Adding an ERC-20 token displays it under the asset list in the wallet with the correct balance, and allows the user to send and receive it.

Acceptance criteria

Users should be able to add Custom ERC-20 tokens to the wallet

Rewards

2500 reward pool

Resources

Taho ETHDenver Docs
https://tahowallet.notion.site/Taho-s-ETH-Denver-Bounties-d86d6ca478764c7aa20ac210fadbe6c9
Taho on Github
https://github.com/tahowallet
Taho Wallet Extension (Github)
https://github.com/tallyhowallet/extension
https://www.figma.com/file/ecoefxm3E3eKfzN8EpDhde/TallyHo!---ETH-Denver-2023?node-id=0%3A1&t=9okJf49cDsuSROzs-0
https://www.figma.com/file/ecoefxm3E3eKfzN8EpDhde/TallyHo!---ETH-Denver-2023?node-id=0%3A1&t=9okJf49cDsuSROzs-0
Bounty video
Judging video