Add NoUnneededImportAliasFixer

by @JakeFr

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in Commits list, a `git rebase` is needed to remove any merges
  • Merge branch 'master' into nounneededalias
  • Merge branch 'master' into nounneededalias
  • Merge branch 'nounneededalias' of https://github.com/JakeFr/PHP-CS-Fixer into nounneededalias
  • Merge branch 'master' into nounneededalias