implemented DateLessLogFormatHelper

[rick-slin]

One line description of pull request

Implemented DateLessLogFormatHelper to retreive a date based on the modified, changed and creation time of a file.

Description:

Implemented DateLessLogFormatHelper to retreive a date based on the modified, changed and creation time of a file.

Related issue (if applicable): fixes #4697

Notes:

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Checklist:

• [ ] Automated checks (GitHub Actions, AppVeyor) pass
• [x] No new new dependencies are required or l2tdevtools has been updated
• [x] Reviewer assigned

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 88.13559% with 14 lines in your changes are missing coverage. Please review.

Project coverage is 85.25%. Comparing base (ed8a139) to head (928605e).

Files	Patch %	Lines
plaso/engine/timeliner.py	78.84%	11 Missing :warning:
plaso/lib/dateless_helper.py	94.23%	3 Missing :warning:

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #4699    +/-   ##
========================================
  Coverage   85.24%   85.25%            
========================================
  Files         426      427     +1     
  Lines       38532    38643   +111     
========================================
+ Hits        32847    32944    +97     
- Misses       5685     5699    +14     

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[joachimmetz]

@rick-slin FYI I'll start looking at merging this after the March release I might combine it with the yearless log helper into 1

[joachimmetz]

@rick-slin unfortunately there are some shortcomings in the current design/approach, I'll need to take a closer look at a later time how to best implement support for date and time formats without a date.

[joachimmetz]

Closing in favor of https://github.com/log2timeline/plaso/pull/4851