Allows access to pipeline via service container

[inmanturbo]

• This package seems to have settled a bit and become pretty stable.
• This change will make it a lot easier to customize the pipeline in projects which depend on folio without maintaining a fork.
  • This is currently already possible, however doing so requires folding the RequestHandler ,FolioManager, and Router into the project
  • I'm doing the above each time I start a new project using this package
  • This reduces code duplication and allows us to submit any future bug fixes or other findings here instead into our own projects
• This won't break any existing installations

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[github-actions[bot]]

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