Adds the Energy Webchain network ENS registry to the known registries

[Agupane]

Description

This PR does add the Energy Webchain network ENS registry to the ENS config file.

Fixes #3768

Type of change

• New feature (non-breaking change which adds functionality)

Checklist:

• I have selected the correct base branch.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• Any dependent changes have been merged and published in downstream modules.
• I ran npm run dtslint with success and extended the tests and types if necessary.
• I ran npm run test:unit with success.
• I ran npm run test:cov and my test cases cover all the lines and branches of the added code.
• I ran npm run build and tested dist/web3.min.js in a browser.
• I have tested my code on the live network.
• I have checked the Deploy Preview and it looks correct.
• I have updated the CHANGELOG.md file in the root folder.

[ngyam]

@Agupane can you add volta too? 73799 -> 0xd7CeF70Ba7efc2035256d828d5287e2D285CD1ac

https://energyweb.atlassian.net/wiki/spaces/EWF/pages/555745281/Using+ENS
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[coveralls]

Coverage increased (+2.4%) to 80.413% when pulling 25dcdf9 on Agupane:issue-3768 into edf481d on ethereum:1.x.

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[spacesailor24]

Judging by this comment, we won't be merging these changes in. Hopefully the postinstall patch method works for you guys until web3 verison 1.4.x