Serialize and deserialize Php-Serialized strings
Basically the equivalent to the php-functions serialize and unserialize.
If you only need basic objects, simply run phpSerialize on any List, Map, String, int or double
and send the resulting String to Php where it can be deserialized with unserialize().
The opposite direction is very similar. Just pass a String generated by Phps serialize()-function
to phpDeserialize and get the resulting objects.
If you need additional Objects, which would be encoded with a leading O:, these functions require
additional information which have to be provided to enable this functionality.
For every class that should be (de-)serializable there has to be an instance of
PhpSerializationObjectInformation which contains the Fully Qualified Class Name from Php
(the classname including the namespace), a method to convert a Dart-object to a list of properties
and another method which does the opposite.