Attempt to use uri of active text editor document to determine virtual env to use with terminal

[SteelPhase]

For #6282

• Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR)
• Title summarizes what is changing
• Has a news entry file (remember to thank yourself!)
• Appropriate comments and documentation strings in the code
• Has sufficient logging.
• Has telemetry for enhancements.
• Unit tests & system/integration tests are added/updated
• Test plan is updated as appropriate
• package-lock.json has been regenerated by running npm install (if dependencies have changed)
• The wiki is updated with any design decisions/details.

[codecov-io]

Codecov Report

Merging #7534 into master will decrease coverage by 0.16%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master    #7534      +/-   ##
==========================================
- Coverage   58.85%   58.68%   -0.17%     
==========================================
  Files         492      493       +1     
  Lines       21823    21997     +174     
  Branches     3501     3533      +32     
==========================================
+ Hits        12843    12909      +66     
- Misses       8179     8279     +100     
- Partials      801      809       +8

Impacted Files	Coverage Δ
src/client/terminals/activation.ts	78.78% <33.33%> (-0.53%)	⬇️
...active-common/intellisense/intellisenseDocument.ts	37.55% <0%> (-19.9%)	⬇️
src/client/common/application/extensions.ts	50% <0%> (-10%)	⬇️
src/client/debugger/extension/adapter/factory.ts	91.66% <0%> (-5.48%)	⬇️
...t/common/insidersBuild/insidersExtensionService.ts	96.29% <0%> (-3.71%)	⬇️
...ent/datascience/jupyter/jupyterExecutionFactory.ts	72.09% <0%> (-3.52%)	⬇️
...ve-common/intellisense/baseIntellisenseProvider.ts	26.94% <0%> (-1.36%)	⬇️
src/client/datascience/gather/gather.ts	67.92% <0%> (-1.17%)	⬇️
...on/terminal/environmentActivationProviders/bash.ts	88.88% <0%> (-1.12%)	⬇️
...ence/interactive-common/intellisense/conversion.ts	12.5% <0%> (-0.71%)	⬇️
... and 23 more

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[kimadeline]

Hello @SteelPhase 👋 Thank you for your contribution!

You are welcome to @ yourself in the news file, and I'll merge your PR afterwards.

Thanks again!

[SteelPhase]

I followed the VSCode Release notes format. let me know if that's alright @kimadeline

[kimadeline]

Sorry I should have mentioned that earlier, could you update it so that it's Message (thanks [yourself](url)).? Here's an example from our changelog:

Don't worry about the list item number and appending the issue number, it's done by our news parsing script.

Thanks again!

[SteelPhase]

Thanks, I was trying to find an example but didn't notice any.