Fixed an issue where searching for old tests that were yml failed to find

[tkmcmaster]

• Fixed an issue where searching for old tests that were yml failed to find
  • Changed the s3 listFiles by extension and PPaasS3File getAllFilesInS3 to allow an extension array
  • Changed the TestManager searchTests to search for both .yaml and .yml files when searching for old tests
  • Added code to handle an empty array
• Added code to handle specify the extension(s) to the search page and the search on the index page
• Changed page load error to warn and log userId

[tkmcmaster]

@burnsidepj This should fix the issue you had where you couldn't find the old tests. They were .yml files rather than .yaml files. This will be fixed the next time we deploy the controller.