Organized parameters better.

Parameters can now be found in their own file config/parameters.yaml. They are prefixed with partdb. and structured into different sections.

config/packages/translation.yaml

@@ -1,7 +1,7 @@
 framework:
-    default_locale: '%locale%'
+    default_locale: '%partdb.locale%'
     translator:
         default_path: '%kernel.project_dir%/translations'
         fallbacks:
-            - '%locale%'
+            - '%partdb.locale%'
             - 'en'