Prefer php-http/discovery over nyholm/psr7 when installed (#1198)

Author: nicolas-grekas

nyholm/psr7/1.0/manifest.json

@@ -1,5 +1,8 @@
 {
     "copy-from-recipe": {
         "config/": "%CONFIG_DIR%/"
+    },
+    "conflict": {
+        "php-http/discovery": ">=1.18"
     }
 }

php-http/discovery/1.18/config/packages/http_discovery.yaml

@@ -0,0 +1,10 @@
+services:
+    Psr\Http\Message\RequestFactoryInterface: '@http_discovery.psr17_factory'
+    Psr\Http\Message\ResponseFactoryInterface: '@http_discovery.psr17_factory'
+    Psr\Http\Message\ServerRequestFactoryInterface: '@http_discovery.psr17_factory'
+    Psr\Http\Message\StreamFactoryInterface: '@http_discovery.psr17_factory'
+    Psr\Http\Message\UploadedFileFactoryInterface: '@http_discovery.psr17_factory'
+    Psr\Http\Message\UriFactoryInterface: '@http_discovery.psr17_factory'
+
+    http_discovery.psr17_factory:
+        class: Http\Discovery\Psr17Factory

php-http/discovery/1.18/manifest.json

@@ -0,0 +1,5 @@
+{
+    "copy-from-recipe": {
+        "config/": "%CONFIG_DIR%/"
+    }
+}