Reproduce the Arrayzy api inside Manager

[electricjones]

It is currently possible to retrieve collections when using the CollectionTrait, but it would be nice to use the api (at least some of it) directly inside manager to modify the values in the container.

$manager->set(['one' => ['two' => ['a', 'b']]]);
$manager->walk('one.two', function(){});

// or
$manger->one->two->walk(function(){});

Not sure the best api to use, but it should be simple enough to use Arrayzy to do the actual work and just have methods in CollectionTrait pass along to the external dependency.

[electricjones]

Commit f7619d8 begins this process.

The question is, how to handle the returns? As of now, any call to any Collection Method is passed to an ArrayImitator instance and the result of that (an ArrayImitator) is returned with a simple toArray() method.

Should an array be returned instead?

Should these methods modify the manager manifest? An optional argument to do so?

Should there be any notion of method chaining while using these? If so, how do you know which to return?

Just thinking out loud 😸

[electricjones]

I've added flagging so the user can choose how the api affects/returns.

All that is left it:

• add the rest of the Arrayzy API
• create a better exception
• figure out how to handle collisions with ChainsNestableItemsTrait