[api-platform/core] sane defaults for API Platform 3.2 (#1240)

api-platform/core/3.2/config/packages/api_platform.yaml

@@ -0,0 +1,18 @@
+api_platform:
+    title: Hello API Platform
+    version: 1.0.0
+    formats:
+        jsonld: ['application/ld+json']
+    doc_formats:
+        jsonld: ['application/ld+json']
+        jsonopenapi: ['application/vnd.openapi+json']
+        html: ['text/html']
+    defaults:
+        stateless: true
+        cache_headers:
+            vary: ['Content-Type', 'Authorization', 'Origin']
+        extra_properties:
+            standard_put: true
+            rfc_7807_compliant_errors: true
+    event_listeners_backward_compatibility_layer: false
+    keep_legacy_inflector: false

api-platform/core/3.2/config/routes/api_platform.yaml

@@ -0,0 +1,4 @@
+api_platform:
+    resource: .
+    type: api_platform
+    prefix: /api