feat: auto detect date_type when not provided

[laresbernardo]

The user may or may not specify date_range. It's not needed given it can be calculated. By default I propose setting date_type = NULL so it happens automatically instead of the current obligatory input. This update doesn't break past versions usage.

[laresbernardo]

@microsoft-github-policy-service agree

[mitokic]

Hey @laresbernardo thanks for the new feature! Can you please add a test in its own file in the test folder so we know it works for various types of data. Maybe using example data from the modeltime package.

[laresbernardo]

Thanks for the feedback @mitokic Added new test.

[laresbernardo]

Looking good to land? @mitokic

[mitokic]

@laresbernardo please review my comments and resolve them. Thanks!

[laresbernardo]

Hi @mitokic I don't see any unresolved conversations. The tests are already implemented in commit 58d9e29. Am I missing something else? Have a nice weekend.