EZP-31718: Added normalizer for SimplifiedRequest

[adamwojs]

Question	Answer
JIRA issue	EZP-31718
Bug/Improvement	yes
New feature	no
Target version	6.13
BC breaks	no
Tests pass	yes
Doc needed	no

EZP-31437 we changed siteaccess serialization format form PHP build-in to JSON. However \eZ\Publish\Core\MVC\Symfony\Routing\SimplifiedRequest::__sleep was never reimplemented as \Symfony\Component\Serializer\Normalizer\NormalizerInterface which leads to issue described in JIRA ticket.

TODO:

• Implement feature / fix a bug.
• Implement tests.
• Fix new code according to Coding Standards ($ composer fix-cs).
• Ask for Code Review.

[andrerom]

+1 as hot fix, but whole architecture of this should be revised in some form as it is getting more and more complex.

[mikadamczyk]

+1 but must be aligned to serializer in version 2.8

[micszo]

Hi @andrerom , could you help establish which VCL file version should be used with 6.13/1.13? Even the oldest stable branch (https://github.com/ezsystems/ezplatform-http-cache/blob/0.8/docs/varnish/vcl/varnish5.vcl) says eZ Platform 2.5LTS or higher. (On 1.13.5.1 there's 0.9.3)
Update: Seems 1.13 works fine with this file https://github.com/ezsystems/ezplatform-http-cache/blob/0.9/docs/varnish/vcl/varnish5.vcl.

[micszo]

QA Approved on eZ Studio v1.13.5.1 with diff, on eZ Platform EE v2.5.11 with branch, on eZ Platform EE v3.0.5* with branch.
Didn't find regressions on other matchers.

* - on v3.0.5 (1.0.4) a ("partial") fix exists: https://github.com/ezsystems/ezplatform-kernel/blob/14faac2e33636686023598079ba8f1217efef2f6/eZ/Bundle/EzPublishCoreBundle/Fragment/SiteAccessSerializationTrait.php#L35 \cc @barw4