Implement datetime_formats in DatetimeInspector

[Femi-lawal]

Description

I have enhanced the DatetimeInspector class to include the capability to detect the specific format of datetime data in each identified datetime column. This enhancement involves adding a new method detect_datetime_format which iterates over a list of user-defined and preset datetime formats, attempting to parse dates in a series using each format. The fit method has been updated to utilize this new functionality, thereby not only identifying datetime columns but also determining their specific formats.

Motivation and Context

It was requested in #95

How has this been tested?

The changes have been thoroughly tested with a series of new unit tests that cover a wide range of scenarios, including:

• Successful format detection for uniform datetime series.
• Detection failure in cases of mixed valid and invalid datetime strings.
• Proper utilization of user-defined formats in format detection.

Types of changes

• Maintenance (no change in code, maintain the project's CI, docs, etc.)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[MooooCat]

Cool! I will finish the code review as soon as possible.

[MooooCat]

LGTM. Thank you for being a developer of SDG.

[Wh1isper]

Thank you!

[Femi-lawal]

Thank you! 😁