Add NEAR Erc20 token.

[paouvrard]

Add support for the NEAR (NEAR) ERC-20 token.

Website: https://near.org Etherscan: https://etherscan.io/token/0x85f17cf997934a597031b2e18a9ab6ebd4b9f6a4 CoinGecko: https://www.coingecko.com/en/coins/near GitHub: https://github.com/near Twitter: https://twitter.com/nearprotocol Rainbow Bridge: https://near.org/blog/the-rainbow-bridge-is-live/

Description

NEAR token is the unit of value on the NEAR Mainnet that enables token holders to use applications on NEAR, participate in network governance, and earn token rewards by staking to the network. NEAR Erc20 is bridged from NEAR Mainnet via the Rainbow Bridge. The Rainbow Bridge is a trustless, permissionless, and generic protocol deployed between Ethereum Mainnet and NEAR Mainnet.

cc @ilblackdragon @djsatok

[MRabenda]

@paouvrard can you solve conflicts? I think we are good to merge