Implement docker based command line code executor

[jackgerrits]

Why are these changes needed?

This PR implements Docker based command line code execution in the new code executor framework.

This docker executor also solves the issue where many images are created and polluting the user's Docker installation. It works by running commands in a running container, rather than the old way where it would run each command in a new layer and commit it.

Related issue number

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 85.93750% with 18 lines in your changes are missing coverage. Please review.

Project coverage is 47.65%. Comparing base (62e77ad) to head (92311e7).
Report is 2 commits behind head on main.

Files	Patch %	Lines
autogen/coding/docker_commandline_code_executor.py	88.42%	7 Missing and 7 partials ⚠️
autogen/coding/jupyter/docker_jupyter_server.py	0.00%	2 Missing ⚠️
autogen/coding/jupyter/jupyter_code_executor.py	0.00%	1 Missing ⚠️
autogen/coding/jupyter/local_jupyter_server.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1856       +/-   ##
===========================================
+ Coverage   36.10%   47.65%   +11.54%     
===========================================
  Files          63       64        +1     
  Lines        6658     6784      +126     
  Branches     1470     1618      +148     
===========================================
+ Hits         2404     3233      +829     
+ Misses       4056     3288      -768     
- Partials      198      263       +65     

Flag	Coverage Δ
unittests	47.56% <85.15%> (+11.46%)	⬆️

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[ekzhu]

Some docs on constructor is needed. Some note for the next PR.

[jackgerrits]

@ekzhu, should be ready to go