[Workfow] Rename current MarkingStore

* ScalarMarkingStore -> SingleStateMarkingStore
* PropertyAccessorMarkingStore -> MultipleStateMarkingStore

And I also made optionnal the `marking_store` config, to let the
componant choose the best marking store depending on the type
(state_machine or workflow).

Author: lyrixx

DependencyInjection/Configuration.php

@@ -241,10 +241,9 @@ private function addWorkflowSection(ArrayNodeDefinition $rootNode)
                                 ->defaultValue('workflow')
                             ->end()
                             ->arrayNode('marking_store')
-                                ->isRequired()
                                 ->children()
                                     ->enumNode('type')
-                                        ->values(array('property_accessor', 'scalar'))
+                                        ->values(array('multiple_state', 'single_state'))
                                     ->end()
                                     ->arrayNode('arguments')
                                         ->beforeNormalization()

Resources/config/workflow.xml

@@ -18,8 +18,8 @@
             <argument /> <!-- name -->
         </service>
 
-        <service id="workflow.marking_store.property_accessor" class="Symfony\Component\Workflow\MarkingStore\PropertyAccessorMarkingStore" abstract="true" />
-        <service id="workflow.marking_store.scalar" class="Symfony\Component\Workflow\MarkingStore\ScalarMarkingStore" abstract="true" />
+        <service id="workflow.marking_store.multiple_state" class="Symfony\Component\Workflow\MarkingStore\MultipleStateMarkingStore" abstract="true" />
+        <service id="workflow.marking_store.single_state" class="Symfony\Component\Workflow\MarkingStore\SingleStateMarkingStore" abstract="true" />
 
         <service id="workflow.registry" class="Symfony\Component\Workflow\Registry" />
 

Tests/DependencyInjection/Fixtures/php/workflow.php

@@ -6,7 +6,7 @@
     'workflows' => array(
         'my_workflow' => array(
             'marking_store' => array(
-                'type' => 'property_accessor',
+                'type' => 'multiple_state',
             ),
             'supports' => array(
                 FrameworkExtensionTest::class,

Tests/DependencyInjection/Fixtures/xml/workflow.xml

@@ -10,7 +10,7 @@
         <framework:workflows>
             <framework:workflow name="my_workflow">
                 <framework:marking-store>
-                    <framework:type>property_accessor</framework:type>
+                    <framework:type>multiple_state</framework:type>
                     <framework:arguments>a</framework:arguments>
                     <framework:arguments>a</framework:arguments>
                 </framework:marking-store>

Tests/DependencyInjection/Fixtures/yml/workflow.yml

@@ -2,7 +2,7 @@ framework:
     workflows:
         my_workflow:
             marking_store:
-                type: property_accessor
+                type: multiple_state
             supports:
                 - Symfony\Bundle\FrameworkBundle\Tests\DependencyInjection\FrameworkExtensionTest
             places: