New loop user types

This merge request implements the support for both autonomous and sequential loop user types.

beat/backend/python/execution/algorithm.py

@@ -124,8 +124,6 @@ class AlgorithmExecutor(object):
             self.prefix, self.data["algorithm"], dataformat_cache, library_cache
         )
 
-        main_channel = self.data["channel"]
-
         if db_socket:
             db_access_mode = AccessMode.REMOTE
             databases = None
@@ -249,7 +247,7 @@ class AlgorithmExecutor(object):
                             inputs=self.input_list, outputs=self.output_list
                         )
 
-                elif self.algorithm.type == Algorithm.SEQUENTIAL:
+                elif self.algorithm.is_sequential:
                     if self.analysis:
                         result = self.runner.process(
                             inputs=self.input_list,
@@ -261,6 +259,7 @@ class AlgorithmExecutor(object):
                             inputs=self.input_list,
                             data_loaders=self.data_loaders,
                             outputs=self.output_list,
+                            loop_channel=self.loop_channel,
                         )
 
                 if not result: