MAGETWO-64523: Add static test on forbidden "final" keyword and eliminate it usage in code

 - refactoring (moved to more semantically correct namespace)

Author: Volodymyr Kublytskyi

dev/tests/static/framework/Magento/MessDetector/resources/rulesets/design.xml renamed to dev/tests/static/framework/Magento/CodeMessDetector/resources/rulesets/design.xml

@@ -5,7 +5,7 @@
          xsi:schemaLocation="http://pmd.sf.net/ruleset/1.0.0 http://pmd.sf.net/ruleset_xml_schema.xsd"
          xsi:noNamespaceSchemaLocation="http://pmd.sf.net/ruleset_xml_schema.xsd">
     <rule name="FinalImplementation"
-          class="Magento\MessDetector\Rule\Design\FinalImplementation"
+          class="Magento\CodeMessDetector\Rule\Design\FinalImplementation"
           message= "The {0} {1} declared as final.">
         <description>
             <![CDATA[

dev/tests/static/framework/Magento/MessDetector/src/Rule/Design/FinalImplementation.php renamed to dev/tests/static/framework/Magento/CodeMessDetector/src/Rule/Design/FinalImplementation.php

@@ -4,7 +4,7 @@
  * See COPYING.txt for license details.
  */
 
-namespace Magento\MessDetector\Rule\Design;
+namespace Magento\CodeMessDetector\Rule\Design;
 
 use PHPMD\AbstractNode;
 use PHPMD\AbstractRule;

dev/tests/static/framework/autoload.php

@@ -18,7 +18,7 @@
         $testsBaseDir . '/../integration/framework/Magento/TestFramework/',
     ]
 );
-$autoloadWrapper->addPsr4('Magento\\MessDetector\\', $testsBaseDir . '/framework/Magento/MessDetector/src');
+$autoloadWrapper->addPsr4('Magento\\CodeMessDetector\\', $testsBaseDir . '/framework/Magento/CodeMessDetector/src');
 
 $generatedCode = DirectoryList::getDefaultConfig()[DirectoryList::GENERATED_CODE][DirectoryList::PATH];
 $autoloadWrapper->addPsr4('Magento\\', $baseDir . '/' . $generatedCode . '/Magento/');

dev/tests/static/testsuite/Magento/Test/Php/_files/phpmd/ruleset.xml

@@ -46,6 +46,6 @@
     <rule ref="rulesets/naming.xml/BooleanGetMethodName" />
 
     <!-- Magento Specific Rules -->
-    <rule ref="Magento/MessDetector/resources/rulesets/design.xml/FinalImplementation" />
+    <rule ref="Magento/CodeMessDetector/resources/rulesets/design.xml/FinalImplementation" />
 
 </ruleset>