Validate SVG files, added details to message, and formatting changed slightly, add logging

[gudmdharalds]

TODO:

• Validate SVG files
  • Update SVG unit-test SvgScanScanSingleFileTest
  • Set up SvgScanScanCommitTest
• Add explanatory message when skipped files are noted
• Alter formatting slightly for outputted message for consistency and easier reading
• Update VipgociSkipFileTest test to match code
• Log when files are skipped due to length
• Update unit-tests as needed
• Changelog entry [Adding changelog entry for version 1.0.8 #190]
• Check automated unit-tests

[wpcomvip-vipgoci-bot]

phpcs scanning turned up:

🚫 1 error

⚠️ 1 warning

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[wpcomvip-vipgoci-bot]

⚠️ Warning( severity 5 ): A file should declare new symbols (classes, functions, constants, etc.) and cause no other side effects, or it should execute logic with side effects, but should not do both. The first symbol is defined on line 20 and the first side effect is on line 3 (PSR1.Files.SideEffects.FoundWithSymbols).

[wpcomvip-vipgoci-bot]

🚫 Error( severity 5 ): Each class must be in a namespace of at least one level (a top-level vendor name) (PSR1.Classes.ClassDeclaration.MissingNamespace).