preset: psr2

• [D] .github
• [D] docs
• [D] public
• [D] src
• [D] tests
• [F] .gitignore
  Delete
• [F] .styleci.yml
  Delete
• [F] .travis.yml
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• [F] CODE_OF_CONDUCT.md
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• [F] composer.json
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• [F] CONTRIBUTING.md
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• [F] LICENSE
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• [F] Makefile
  Delete
• [F] phpunit.xml
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• [F] PULL_REQUEST_TEMPLATE.md
  Delete
• [F] README.md
  Delete