chore(angularFiles): add missing files

[petebacondarwin]

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

What is the current behavior? (You can also link to an open issue here)

What is the new behavior (if this is a feature change)?

Does this PR introduce a breaking change?

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md#commit-message-format
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Other information:

ngMessageFormat test files were missing from angularTest
ngMessages and ngAnimate were missing from karmaModules.

This change highlighted a number of problems in the tests and code,
which are also fixed.

Closes #14314

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