Expose asset entries

[waynemwashuma]

Objective

Add a values() method to the Assets and DenseList classes to provide direct access to all stored items in a read only mode,

Solution

• Assets.values(): Returns an iterable of all asset handles stored in the Assets container.
• DenseList.values(): Returns a readonly array of all items in the dense list.

Showcase

// Iterate over all assets
for (const asset of assets.values()) {
  console.log(asset);
}

// Access all items in a dense list
const allItems = denseList.values();
console.log(allItems);

Migration guide

No breaking changes.

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.