- Deleted ToolInterfaceAgent class and its associated tests.

- Refactored `AgentMemory` class:
  - Removed unnecessary fields related to tool calls.
  - Simplified message handling and serialization methods.
  - Enhanced `dump` and `load` methods to support new content types.
  - Added capability to manage complex schemas in memory operations.
- Updated tests for `AgentMemory` to cover new serialization functionality and ensure correct behavior with complex schemas.
- Updated test assertions to match recent changes in the memory structure and message handling.
- Improved example code and renamed several demo scripts for clarity.

atomic-agents/.coveragerc

@@ -0,0 +1,12 @@
+[report]
+show_missing=true
+exclude_lines =
+    @abstractmethod
+    @abc.abstractmethod
+exclude_also =
+    if __name__ == .__main__.:
+
+[run]
+omit =
+    */__init__.py
+    */tests/*