* Move retrieveing file attibutes to PowerRenameRegex
Move file attributes unit tests to PowerRenameRegexTests
Add file time field to MockPowerRenameItem
* Add file attributes unittests to PowerRenameManagerTests
* Change variable name
* Rearrange function arguments
* Check if file attributes are used only once
* Change variable name LocalTime -> fileTime, date -> time
* Set fileTime as a member of PowerRenameRegEx rather than passing as an argument
* Change function name isFileAttributesUsed() -> isFileTimeUsed()
Check before resetting fileTime
* Fix small bugs
* Fix typos
* Refactor for readability, move free calls to reachable places
* Fix search for area empty bug
searchTerm being empty is not an invalid argument rather it must return OK without any operation
Tests must check if Replace() returns S_OK becuase later it checks its result
* Check return values of method calls in PowerRenameManager
Remove received argments checks from some methods because argument being null or empty string doesnt mean it is invalid or method fails
* Fix formatting. Remove overlooked comment. Fix error message.
* Change HRESULT declarations according to coding style
* Fix unhandled case. Refactor.
