Store interpreter information in notebook metadata and stop listing default kernespecs

[DonJayamanne]

For #5612
For #5445

[codecov-commenter]

Codecov Report

Merging #5732 (905538b) into main (c7d5fde) will increase coverage by 3%.
The diff coverage is 79%.

@@          Coverage Diff           @@
##            main   #5732    +/-   ##
======================================
+ Coverage     69%     72%    +3%     
======================================
  Files        403     403            
  Lines      26851   26865    +14     
  Branches    3910    3914     +4     
======================================
+ Hits       18595   19549   +954     
+ Misses      6637    5671   -966     
- Partials    1619    1645    +26     

Impacted Files	Coverage Δ
...t/datascience/kernel-launcher/localKernelFinder.ts	82% <73%> (+<1%)	⬆️
src/client/datascience/jupyter/kernels/helpers.ts	74% <100%> (+2%)	⬆️
...rc/client/datascience/notebookStorage/baseModel.ts	80% <100%> (+9%)	⬆️
src/client/datascience/notebook/helpers/helpers.ts	72% <0%> (-2%)	⬇️
...t/datascience/notebook/vscodeNotebookController.ts	76% <0%> (-1%)	⬇️
.../datascience/notebook/notebookControllerManager.ts	84% <0%> (-1%)	⬇️
...ient/datascience/editor-integration/codewatcher.ts	69% <0%> (-1%)	⬇️
...atascience/jupyter/kernels/jupyterKernelService.ts	80% <0%> (+<1%)	⬆️
src/client/common/configSettings.ts	90% <0%> (+<1%)	⬆️
...atascience/kernel-launcher/kernelLauncherDaemon.ts	94% <0%> (+<1%)	⬆️
... and 66 more