Remove unceccessary blank line
Fix alignment
[BUG FIX]CFI includes text step
Add descriptions of arguments for Result#initialize
Change method name: to_cfi -> to_cfi_s
[REFACTORING]Define Result::Step#to_cfi_s and call it from Result#to_cfi_s
Move utility methods for TestSearcher to parent class
Add Searcher::Publiction