Add default implementation for other UITableViewDelegate/UICollectionViewDelegate methods

[bobek-balinek]

Checklist

• [x] All tests are passed.
• [x] Added tests.
• [x] Documented the code using Xcode markup.
• [x] Searched existing pull requests for ensure not duplicated.

Description

As per #16 , when implementing a table view delegate there are currently some methods that aren't implemented. It is currently possible to add these methods by using @objc(…) modifier, but I feel like a default, open for overriding implementation achieves a better experience after all.

Related Issue

Introduction of default implementations for other UITableViewDelegate and UICollectionViewDelegate methods - #16

Impact on Existing Code

No impact on existing code.

[ra1028]

Thanks @bobek-balinek ! Nicely done 👍