Defer accessing fetchResults settings

[natecraft1]

Issue

Setting custom fetchResults prior to obtaining Photos permission from the user results in null AssetCollections, and thus will present an empty ImagePickerController the first time it is presented.

For instance

let imagePickerVC = ImagePickerController()
imagePickerVC.settings.fetch.album.fetchResults = [PHAssetCollection.fetchAssetCollection(with: .album, subtype: .albumRegular, options: PHFetchOptions())]
imagePickerVC.presentImagePicker(...

will have the effect of presenting an empty picker the first time after permissions are first granted.

Proposed solution
Defer the access of the fetchResults settings by using a function rather than a var.

Note
There are other ways of solving this, such as adding an onAuthorization closure to the presentImagePicker call and allowing settings to be passed in there.

[tinder-owenthomas]

Suggested change

	public lazy var fetchResults: () -> [PHFetchResult<PHAssetCollection>] = { [options] in
	public lazy var fetchResults: () -> [PHFetchResult<PHAssetCollection>] = {

[tinder-owenthomas]

Suggested change

	return [
	[

[mikaoj]

Sure makes sense. Wouldn't some of the examples also need to be updated?