implemented collecting of creator plugins for host

openpype/modules/base.py

@@ -702,6 +702,32 @@ class ModulesManager:
             ).format(expected_keys, " | ".join(msg_items)))
         return output
 
+    def collect_creator_plugin_paths(self, host_name):
+        """Helper to collect creator plugin paths from modules.
+
+        Args:
+            host_name (str): For which host are creators meants.
+
+        Returns:
+            list: List of creator plugin paths.
+        """
+        # Output structure
+        from openpype_interfaces import IPluginPaths
+
+        output = []
+        for module in self.get_enabled_modules():
+            # Skip module that do not inherit from `IPluginPaths`
+            if not isinstance(module, IPluginPaths):
+                continue
+
+            paths = module.get_creator_plugin_paths(host_name)
+            if paths:
+                # Convert to list if value is not list
+                if not isinstance(paths, (list, tuple, set)):
+                    paths = [paths]
+                output.extend(paths)
+        return output
+
     def collect_launch_hook_paths(self):
         """Helper to collect hooks from modules inherited ILaunchHookPaths.