Better Serializer support + disabled Symfony serializer

[Rastusik]

Hi, I created my own serializer which seems to be 4-5x faster than JMS and Ivory (using json serialization) ... since there is quite a big difference between the mentioned 3 libs and symfony serializer, I disabled the symfony serializer, because it was 100-300x slower then my own serializer and it was quite a pain to wait for the benchmark results.

Is there any other thing I should do before merge? What do you say about these changes?

[goetas]

I have forked this repo in https://github.com/php-serializers/ivory-serializer-benchmark and created a php-serializers github org.

I invite you to use https://github.com/php-serializers/ivory-serializer-benchmark for benchmarking PHP serializer libraries

I have merged some PR from this repo to the fork, but this PR was looking pretty complex. Do you mind creating a PR against the fork?

[Rastusik]

@goetas I'll try, but currently I don't have much time to do this, so I'll just do it later, if you don't mind

[goetas]

Sure! :)