Add version number to API

[TheJaredWilcurt]

API Examples:

import { version } from 'vue'; // '3.5.17'

import { version }  from 'axe-core'; // 'v4.10.3'

This allows tool developers to better communicate the APCA version in use. Which in turn, helps APCA enforce that people are using the latest versions, per the licensing agreement.

You could also do versions instead if you want to give the version information separately for the library the APCA spec, or other related properties.

Currently, I'll have to write a post-build script to read the data from the package.json in node_modules, which is hacky. There should be a more convenient, and official, way to pull this information dynamically.