Use custom snapshot for views that implements HeroCustomSnapshotView

[ManueGE]

I found very useful the Optimized snapshots for UIImageView, UIStackView, Bars, ...

But at some point, I found myself needing my custom views a customized snapshot. To solve this issue, I created the HeroCustomSnapshotView protocol, that a view can implement in order to provide their own optimized snapshot. It has no impact in the rest of the library, but it can make it a little more flexible.

If you like the idea but you'd like to use a better wording or a different approach, let me know, I'll be happy to help.

[ManueGE]

@SD10 do you think this PR makes sense? if you have any improvement I'll be happy to change or adapt my PR.

[SD10]

@ManueGE This is interesting for sure.

Since the HeroCustomSnapshotView protocol's snapshotView property is optional, its able to fall through to other cases if a snapshotView is not provided. That's pretty cool 👍

I think this is pretty low impact and can provide a lot of value. Can you add a changelog entry for this change?

It should go:

1. Under the "Upcoming Release" header
2. Under the "Added" section
3. Please take care to follow the existing changelog entry format

[ManueGE]

Added the changes to Changelog.

[ManueGE]

Hi @SD10

Thanks for taking the time of merging master into it.

Do you need me to add any additional change to this PR?

[SD10]

@ManueGE This is good to go. I just didn't have the time to give it the final review last night 😅 I'll work on creating a new release soon too

[ManueGE]

Thank you very much @SD10, didn’t want to put more pressure on you, just asked in case you missed it.

Thanks again. 😊

[SD10]

@ManueGE Happy New Year 🎉 Do you have any interest in helping me maintain Hero? 😄 You can reach out to me on Twitter at _SD10_ if you want to talk more