BIG PYTHON REFACTOR

Python scripts moved out of python/ folder to root to be unified with plugins

+ frontend extension around api calls

extensions/python/message_loop_start/_10_iteration_no.py

@@ -0,0 +1,17 @@
+from helpers.extension import Extension
+from agent import Agent, LoopData
+
+DATA_NAME_ITER_NO = "iteration_no"
+
+class IterationNo(Extension):
+    async def execute(self, loop_data: LoopData = LoopData(), **kwargs):
+        if not self.agent:
+            return
+            
+        # total iteration number
+        no = self.agent.get_data(DATA_NAME_ITER_NO) or 0
+        self.agent.set_data(DATA_NAME_ITER_NO, no + 1)
+
+
+def get_iter_no(agent: Agent) -> int:
+    return agent.get_data(DATA_NAME_ITER_NO) or 0