agent: Add IBatchableTelem

IBatchableTelem adds two methods to the ITelem interface. These methods allow
a telemetry object to mange batches of telemetry entries, rather than
just one.

monkey/infection_monkey/telemetry/i_batchable_telem.py

@@ -0,0 +1,16 @@
+from __future__ import annotations
+
+import abc
+from typing import Iterable
+
+from infection_monkey.telemetry.i_telem import ITelem
+
+
+class IBatchableTelem(ITelem, metaclass=abc.ABCMeta):
+    @abc.abstractmethod
+    def get_telemetry_entries(self) -> Iterable:
+        pass
+
+    @abc.abstractmethod
+    def add_telemetry_to_batch(self, telemetry: IBatchableTelem):
+        pass