[6.x] Refactor augmentation

[duncanmcclean]

This pull request refactors how augmentation works in Runway to bring it inline with how Statamic Core does augmentation.

Breaking changes

If you have any custom code that calls any of Runway's augmentation methods, you'll need to refactor them. Here's a few examples:

// Previously....
$resource->augment($model);
AugmentedModel::augment($model, $resource->blueprint());

// Now..
$model->toAugmentedArray();

The output of ->toAugmentedArray() will likely be slightly different to what was returned previously. Each of the items in the array will be a Value object.

You should test your code and make any necessary adjustments.

To Do

• Write a better PR description
• Ensure nested fields get augmented correctly

[github-actions]

Released as part of v6.0.0.

[github-actions]

Released as part of v6.0.0.