[PowerRename] Fix tests inconsistency, improve test performance (#8129)

* 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.

src/modules/powerrename/unittests/MockPowerRenameManagerEvents.cpp

@@ -81,8 +81,8 @@ HRESULT CMockPowerRenameManagerEvents::s_CreateInstance(_In_ IPowerRenameManager
 {
     *ppsrui = nullptr;
     CMockPowerRenameManagerEvents* events = new CMockPowerRenameManagerEvents();
-    HRESULT hr = events != nullptr ? S_OK : E_OUTOFMEMORY;
-    if (SUCCEEDED(hr))
+    HRESULT hr = E_OUTOFMEMORY;
+    if (events != nullptr)
     {
         hr = events->QueryInterface(IID_PPV_ARGS(ppsrui));
         events->Release();