WIP convert Assert.js using at-noder-converter
WIP change overrideClass to also alter require cache

Fixes:
test.aria.core.FileLoaderTest
test.aria.core.FileLoaderLicenseTest
test.aria.widgets.form.multiselect.issue312.*
WIP refactor Assert.js changes
WIP: using a new version of attester (with support for require in at tests)