Change Update Method to know when Adding An element to an array

[harrytwright]

To save time, and having to manually call database

could add some new DBObject methods

i.e:

add(to type: Type, forKey key: String, callback: (Bool, Error?) -> Void)
remove(from type: Type, forKey key: String, callback: (Bool, Error?) -> Void)

[harrytwright]

Adding will be added soon, with remove coming soon, these will currently only work with Arrays and CodableColection CodableArray with a Dictionary overload coming soon

func addChange<Change: Codable, Sequence: RangeReplaceableCollection>(_:forKeyPath:callback:) where Sequence.Element == Change

// _: Change
// forKeyPath: WritableKeyPath<Self, Sequence>
// callback: @escaping (DBObjectChange, DBDocument) -> Void

This will just allow users to access there Document from a new perspective, if they were to have an Array all the way in the back, they could access that and change it without long messy callbacks