Use include path when importing YAML files

[schmengler]

import() with PHP files uses the include path because require is used. It would be logical to also use the include path when importing YAML files.

It can be achieved with the use_include_path argument of file_get_contents():

--- a/src/Importer/Importer.php
+++ b/src/Importer/Importer.php
@@ -71,7 +71,7 @@ class Importer
                 });
             } else if (preg_match('/\.ya?ml$/i', $path)) {
                 self::$recipeFilename = basename($path);
-                self::$recipeSource = file_get_contents($path);
+                self::$recipeSource = file_get_contents($path, true);
                 $root = array_filter(Yaml::parse(self::$recipeSource), static function (string $key) {
                     return substr($key, 0, 1) !== '.';
                 }, ARRAY_FILTER_USE_KEY);

[schmengler]

PR: #3377

[antonmedv]

Merged.