[#646] Added installer paths for custom modules, profiles and themes.

Author: AlexSkrypnyk

composer.json

@@ -87,6 +87,15 @@
             ],
             "drush/Commands/contrib/{$name}": [
                 "type:drupal-drush"
+            ],
+            "web/modules/custom/{$name}": [
+                "type:drupal-custom-module"
+            ],
+            "web/profiles/custom/{$name}": [
+                "type:drupal-custom-profile"
+            ],
+            "web/themes/custom/{$name}": [
+                "type:drupal-custom-theme"
             ]
         },
         "installer-types": [