Only check date range when defined

[inode64]

It can happen and it has happened to me, that the date of the videos recorded by the gopro is in the future and now they are not imported

I have created a function to group the check of date ranges and it only checks the dates in case they contain any value

Type:

• Bug fix
• New feature
• Breaking change
• Documentation

Camera:

• GoPro
• Insta360
• DJI
• Android
• This PR adds a new camera

Component:

• Core logic
• Import
• Merging
• Firmware Update
• Video Manipulation

Checklist before approval:

• Linter pass
• Build pass

[inode64]

By the way, I have seen https://github.com/markusmobius/go-dateparser which may be interesting for date management, which is a more advanced function,
If you want you can modify the code to add it
How about?

[KonradIT]

Go's date parser is already pretty good.

[KonradIT]

I have to test this extensively before merging.

[inode64]

For now, it did not include more changes.
I propose the markusmobius/go-dateparser library for another pull request.