[DOP-5632] Split FileLimit to separate limits

[dolfinus]

• Added new onetl.file.limit module
• Replaced old class FileLimit(count_limit=10) class with MaxFilesCount(10), placed new class to new module, added documentation & unit tests.
• Moved limits_reached to new module, renamed to limits_stop_at, to show that it checks a specific path against limits, added unit tests & documentation.
• Added new functions limits_reached and reset_limits which previously were a part of FileConnection.list_dir and .walk. They can help other developers to implement new modules in the future. Documented and tested them as well.
• Added documentation for BaseFileLimit
• Changed a bit the behavior of BaseFileLimit.reset() method - now the return value is used as a new limit, so it now depends on developer, should it resett a limit object state in-place or create a copy.

Documentation: https://onetl--44.org.readthedocs.build/en/44/file_limit/index.html

[codecov]

Codecov Report

Merging #44 (f104a5f) into develop (bafe668) will increase coverage by 0.09%.
The diff coverage is 97.67%.

@@             Coverage Diff             @@
##           develop      #44      +/-   ##
===========================================
+ Coverage    92.94%   93.04%   +0.09%     
===========================================
  Files          120      124       +4     
  Lines         5770     5822      +52     
  Branches      1001     1006       +5     
===========================================
+ Hits          5363     5417      +54     
+ Misses         313      312       -1     
+ Partials        94       93       -1     

Impacted Files	Coverage Δ
onetl/base/base_file_filter.py	100.00% <ø> (ø)
onetl/core/file_filter/file_filter.py	97.59% <ø> (ø)
onetl/core/file_limit/__init__.py	100.00% <ø> (ø)
...netl/connection/file_connection/file_connection.py	93.35% <75.00%> (+0.63%)	⬆️
onetl/base/base_file_limit.py	100.00% <100.00%> (ø)
onetl/core/file_limit/file_limit.py	100.00% <100.00%> (ø)
onetl/file/filter/match_all_filters.py	100.00% <100.00%> (ø)
onetl/file/limit/__init__.py	100.00% <100.00%> (ø)
onetl/file/limit/limits_reached.py	100.00% <100.00%> (ø)
onetl/file/limit/limits_stop_at.py	100.00% <100.00%> (ø)
... and 2 more