feat: add Irys on Ethereum Mainnet & BSC

[JesseTheRobot]

Adds the official Irys token contracts on Eth Mainnet and BSC (https://docs.irys.xyz/learn/network-overview/contracts) Main project site: https://irys.xyz

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[!NOTE] Add Irys ERC20 token entries for Ethereum (0x50f4...) and BSC (0x9115...) with SVG logos.

• Tokens/Assets:
  • Irys (IRYS) ERC20:
    • Ethereum Mainnet: add metadata/eip155:1/erc20:0x50f41F589aFACa2EF41FDF590FE7b90cD26DEe64.json and icons/eip155:1/erc20:0x50f41F589aFACa2EF41FDF590FE7b90cD26DEe64.svg.
    • BSC: add metadata/eip155:56/erc20:0x91152B4Ef635403efBAe860edD0F8c321d7c035d.json and icons/eip155:56/erc20:0x91152B4Ef635403efBAe860edD0F8c321d7c035d.svg.

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