Update recipe for Contao 5.x (#1760)

contao/core-bundle/5.0/config/packages/contao_core.yaml

@@ -0,0 +1,10 @@
+# See https://github.com/contao/core-bundle
+contao:
+    preview_script: '/preview.php'
+    upload_path: files
+    csrf_token_name: contao_csrf_token
+    pretty_error_screens: true
+
+when@dev:
+    contao:
+        pretty_error_screens: false

contao/core-bundle/5.0/manifest.json

@@ -0,0 +1,25 @@
+{
+    "bundles": {
+        "Contao\\CoreBundle\\ContaoCoreBundle": ["all"]
+    },
+    "copy-from-recipe": {
+        "config/": "%CONFIG_DIR%/"
+    },
+    "composer-scripts": {
+        "contao:install %PUBLIC_DIR%": "symfony-cmd",
+        "contao:symlinks %PUBLIC_DIR%": "symfony-cmd"
+    },
+    "gitignore": [
+        "/assets/",
+        "/files/",
+        "/public/assets",
+        "/public/files/",
+        "/public/share/",
+        "/public/system/",
+        "/system/*",
+        "!/system/config/",
+        "/system/config/localconfig.php",
+        "/system/config/tcpdf.php",
+        "/system/modules/*/.skip"
+    ]
+}

contao/core-bundle/5.0/post-install.txt

@@ -0,0 +1,9 @@
+  * Enable ESI in the <fg=green>config/packages/framework.yaml</> file.
+
+  * Add the Contao routes to your <fg=green>config/routing.yaml</> file and
+    make sure they are loaded at the very end.
+
+  * Edit your <fg=green>config/security.yaml</> file and include all the
+    necessary providers, firewalls and access control sections.
+
+Documentation: https://docs.contao.org/dev/