Add basic implementation of agent profiler

[gagb]

Why are these changes needed?

Implements the most basic profiler for mapping a given chat history to a visualization.
It first annotates the conversation using GPT-4 and then visualizes the annotated history as a directed graph.

Related issue number

#307

Checks

• I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://microsoft.github.io/autogen/docs/Contribute#documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 76 lines in your changes missing coverage. Please review.

Please upload report for BASE (0.2@e7cdae6). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
autogen/agentchat/contrib/profiler/visualize.py	0.00%	41 Missing ⚠️
autogen/agentchat/contrib/profiler/profiler.py	0.00%	33 Missing ⚠️
autogen/agentchat/contrib/profiler/__init__.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##             0.2    #1023   +/-   ##
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  Coverage       ?   39.90%           
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  Files          ?       35           
  Lines          ?     4378           
  Branches       ?     1067           
======================================
  Hits           ?     1747           
  Misses         ?     2505           
  Partials       ?      126           

Flag	Coverage Δ
unittests	39.83% <0.00%> (?)

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[rysweet]

This PR is against AutoGen 0.2. AutoGen 0.2 has been moved to the 0.2 branch. Please rebase your PR on the 0.2 branch or update it to work with the new AutoGen 0.4 that is now in main.

[rysweet]

This PR is against AutoGen 0.2. AutoGen 0.2 has been moved to the 0.2 branch. Please rebase your PR on the 0.2 branch or update it to work with the new AutoGen 0.4 that is now in main.

[rysweet]

@gagb do we still need this one open?

[gagb]

I will resume this later; Add to 0.4 instead of 0.2.