FEATURE: Meta can now be set by property path
FEATURE: Meta can now be set by property path

Example:

> $topLevel
>   ->getMeta()
>   ->offsetSet('page.total', 10)
>   ->offsetSet('page.current', 5);

Those offsets are now merged into the existing data automatically.
If the new property path conflicts with an existing one, the later
will be used, the existing one will be overwritten.

netlogix/jsonapiorg