Fixes to Jupyter daemon and refactor jupyter commands

[DonJayamanne]

For #7242

• Refactor Jupyter Commands
• Fixes to Jupyter daemon

(daemon is not used in this PR, wanted to get some other refactorings and fixes out before integrating the daemon. Smaller set of changes easier to review).

[codecov-io]

Codecov Report

Merging #8469 into master will decrease coverage by 0.3%.
The diff coverage is 67.39%.

@@            Coverage Diff             @@
##           master    #8469      +/-   ##
==========================================
- Coverage   59.39%   59.09%   -0.31%     
==========================================
  Files         509      510       +1     
  Lines       23423    23561     +138     
  Branches     3786     3813      +27     
==========================================
+ Hits        13913    13924      +11     
- Misses       8604     8729     +125     
- Partials      906      908       +2

Impacted Files	Coverage Δ
src/client/datascience/types.ts	100% <ø> (ø)	⬆️
src/client/common/process/types.ts	100% <ø> (ø)	⬆️
src/client/common/process/pythonDaemon.ts	7.69% <0%> (ø)
src/client/datascience/jupyter/jupyterCommand.ts	95.65% <100%> (+0.41%)	⬆️
...rc/client/common/process/pythonExecutionFactory.ts	53.42% <20%> (-0.87%)	⬇️
...client/datascience/jupyter/jupyterCommandFinder.ts	73.59% <74.07%> (-1.81%)	⬇️
...lient/interpreter/locators/services/condaHelper.ts	90.62% <0%> (-0.56%)	⬇️
...mentActivationProviders/condaActivationProvider.ts	94.23% <0%> (+0.11%)	⬆️

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[rchiodo]

[IanMatthewHuff]