Agentic memory

[rickyloynd-microsoft]

Adds a baseline implementation of agentic memory to the autogen-ext package.

For technical details, see the Agentic Memory README.

To see it in action, view the page logs generated while running the code samples.

Items we've discussed that may be handled in post-PR issues:

• Logging to *.jsonl files.
• Object serialization and deserialization.
• Making AgenticMemoryBank use a chromadb-specific implementation of autogen-core/memory.

[ekzhu]

@jackgerrits we will be refactoring this in the current branch first

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1016 lines in your changes missing coverage. Please review.

Project coverage is 70.59%. Comparing base (f7f5507) to head (2b2cbdb).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...-ext/src/autogen_ext/agentic_memory/page_logger.py	0.00%	274 Missing ⚠️
...en_ext/agentic_memory/agentic_memory_controller.py	0.00%	207 Missing ⚠️
...en-ext/src/autogen_ext/agentic_memory/_prompter.py	0.00%	118 Missing ⚠️
...n-ext/src/autogen_ext/agentic_memory/apprentice.py	0.00%	107 Missing ⚠️
...autogen_ext/agentic_memory/_agentic_memory_bank.py	0.00%	95 Missing ⚠️
...togen-ext/src/autogen_ext/agentic_memory/grader.py	0.00%	79 Missing ⚠️
...togen_ext/agentic_memory/_string_similarity_map.py	0.00%	66 Missing ⚠️
...togen-ext/src/autogen_ext/agentic_memory/_utils.py	0.00%	65 Missing ⚠️
...gen-ext/src/autogen_ext/agentic_memory/__init__.py	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5227      +/-   ##
==========================================
- Coverage   78.08%   70.59%   -7.49%     
==========================================
  Files         158      167       +9     
  Lines        9576    10592    +1016     
==========================================
  Hits         7477     7477              
- Misses       2099     3115    +1016     

Flag	Coverage Δ
unittests	70.59% <0.00%> (-7.49%)	⬇️

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