Move Context and Config From Cython To Pure Python

[nguyenv]

No description provided.

[shortcut-integration]

This pull request has been linked to Shortcut Story #15235: pybind11 wrap ctx/config.

[nguyenv]

Note I have tested this against Dask, and no issues this time.

(dask-dev) vivian@mangonada:~/dask$ pytest -v --doctest-modules --ignore-glob='*/test_*.py' dask -k "diagnostics or tiledb"
================================================ test session starts ================================================
platform linux -- Python 3.9.13, pytest-7.1.3, pluggy-1.0.0 -- /home/vivian/anaconda3/envs/dask-dev/bin/python
cachedir: .pytest_cache
hypothesis profile 'default' -> database=DirectoryBasedExampleDatabase('/home/vivian/dask/.hypothesis/examples')
rootdir: /home/vivian/dask, configfile: setup.cfg
plugins: forked-1.4.0, hypothesis-6.56.2, rerunfailures-10.2, timeout-2.1.0, xdist-2.5.0, cov-4.0.0
collected 784 items / 778 deselected / 6 selected

dask/diagnostics/profile.py::dask.diagnostics.profile.CacheProfiler PASSED                                    [ 16%]
dask/diagnostics/profile.py::dask.diagnostics.profile.Profiler PASSED                                         [ 33%]
dask/diagnostics/profile.py::dask.diagnostics.profile.ResourceProfiler PASSED                                 [ 50%]
dask/diagnostics/profile_visualize.py::dask.diagnostics.profile_visualize.pprint_task PASSED                  [ 66%]
dask/diagnostics/progress.py::dask.diagnostics.progress.ProgressBar SKIPPED (all tests skipped by +SKIP option) [ 83%]
dask/diagnostics/progress.py::dask.diagnostics.progress.format_time SKIPPED (all tests skipped by +SKIP option) [100%]

=============================================== slowest 10 durations ================================================
1.01s call     dask/diagnostics/profile.py::dask.diagnostics.profile.ResourceProfiler
0.01s call     dask/diagnostics/profile.py::dask.diagnostics.profile.CacheProfiler
0.00s call     dask/diagnostics/profile.py::dask.diagnostics.profile.Profiler
0.00s call     dask/diagnostics/profile_visualize.py::dask.diagnostics.profile_visualize.pprint_task
0.00s setup    dask/diagnostics/profile.py::dask.diagnostics.profile.CacheProfiler
0.00s setup    dask/diagnostics/profile_visualize.py::dask.diagnostics.profile_visualize.pprint_task
0.00s setup    dask/diagnostics/progress.py::dask.diagnostics.progress.format_time
0.00s teardown dask/diagnostics/progress.py::dask.diagnostics.progress.format_time
0.00s setup    dask/diagnostics/profile.py::dask.diagnostics.profile.Profiler
0.00s setup    dask/diagnostics/progress.py::dask.diagnostics.progress.ProgressBar
============================================== short test summary info ==============================================
SKIPPED [2] ../anaconda3/envs/dask-dev/lib/python3.9/site-packages/_pytest/doctest.py:452: all tests skipped by +SKIP option
=================================== 4 passed, 2 skipped, 778 deselected in 3.36s ====================================