Add "items" to repeats for available bindings

Wappler already has a few bindings that are auto available on client side repeat elements, such as $index, $key, $value
I would love to see items added there too, like they are for an Array component

Screenshot 2020-05-26 at 16.32.46461×681 29.2 KB

Without items it is currently not possible through data bindings to do certain things such as using sum() outside the repeat, while manually adding {{repeat1.items.sum(`price`)}} works perfectly by manually adding it.
It is also not possible to show the values like {{repeat1.items.values(`price`)}} which is great when i want a comma separated list of values in the repeat.