Add detekt-test target

[davidkurkov]

• Add detekt_test rule which shares the same implementation as the existing detekt build rule
• Modify detekt-rule implementation
  • Write the execution-result of running detekt-executable to a --execution-result file
  • Do not raise a failure as part of running the detekt-executable if --run-as-test-target is passed-in
    • The implementation writes a shell script with the value stored in the --execution-result file and evaluates it
• Update Executable.execute to handle arguments passed in directly and via a params-file so they are always passed the same way to the detekt-executable
  • In addition, sanitize the detekt-wrapper-arguments before passing them onto the detekt-executable

[davidkurkov]

cc @Bencodes @artem-zinnatullin