Prepare recipe for doctrine migrations 3.0 and address migrations 2.2 deprecations

Author: goetas

doctrine/doctrine-migrations-bundle/2.2/config/packages/doctrine_migrations.yaml

@@ -0,0 +1,5 @@
+doctrine_migrations:
+    migrations_paths:
+        # namespace is arbitrary but should be different from App\Migrations
+        # as migrations classes should NOT be autoloaded
+        'DoctrineMigrations': '%kernel.project_dir%/migrations'

doctrine/doctrine-migrations-bundle/2.2/manifest.json

@@ -0,0 +1,10 @@
+{
+    "bundles": {
+        "Doctrine\\Bundle\\MigrationsBundle\\DoctrineMigrationsBundle": ["all"]
+    },
+    "copy-from-recipe": {
+        "config/": "%CONFIG_DIR%/",
+        "migrations/": "migrations/"
+    },
+    "aliases": ["doctrine-migrations", "migrations"]
+}