New `numbers` plugin to expand allowable number formats

[6utt3rfly]

supports:

• hex (0x123)
• binary(0b1111)
• octal (0o644 and 0644)

Also adds ignoring of underscore _ characters, which means basically copying/replacing the core gobbleNumericLiteral method. Didn't add BigInt support because I felt that it would be better as a separate plugin, so it can also add operators, and for not limiting this plugin's compatibility since BigInt is newer 🤷🏻‍♀️

fixes #206

[github-actions[bot]]

:tada: This PR is included in version @jsep-plugin/numbers-v1.0.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: