Add RoleDumper and DumpListPermissionsCommand to generate a markdown list of permissions

src/Bundle/ChillMainBundle/Security/RoleProvider.php

@@ -52,12 +52,8 @@ class RoleProvider
 
     /**
      * Get the title for each role.
-     *
-     * @param string $role
-     *
-     * @return string the title of the role
      */
-    public function getRoleTitle($role)
+    public function getRoleTitle(string $role): ?string
     {
         $this->initializeRolesTitlesCache();
 
@@ -73,7 +69,7 @@ class RoleProvider
     /**
      * initialize the array for caching role and titles.
      */
-    private function initializeRolesTitlesCache()
+    private function initializeRolesTitlesCache(): void
     {
         // break if already initialized
         if (null !== $this->rolesTitlesCache) {