StickyTabBarViewController Versions Save

• Use loadViewIfNeeded instead of loadView to prevent any potential unexpected behaviours if the view is already loaded when adding the child view controller to sticky expandable view. Changes
• With this version, now it is also possible to add it as a swift package with specific versions (starting with 1.0.6) other than adding it via branch.

Few api changes,

For the child viewController that conforms to Expandable;

• expander is renamed to container

Following methods are renamed: removeCollapsibleViewController(animated:) -> removeCollapsableChild(animated:) configureCollapsedTrainingView(withChildViewController:) -> configureCollapsableChild(:)

Deprecated following tabBarController methods:

• updateCollapsedHeight(to:)
• updateAnimationDuration(to:)

Now instead you can directly change these values by overriding init methods or in viewDidLoad, see README for more details.