This commit reduces the number of generated VS profiles from 6 down to just 2
per VS instance. The reason we did this is out of concern of overwhelming or
annoying new users with too many profiles. Especially since it's far easier
at the moment to add new generators compared to removing them.
As before only the latest instance is not hidden by default.
## PR Checklist
* [x] I work here
* [x] Tests added/passed
* [x] As discussed in a Team Sync meeting
## Validation Steps Performed
* Installed Visual Studio 2019 and 2022 Preview
* A profile for both is generated, while the 2019 one is hidden by default ✔️
* $env:VSCMD_ARG_TGT_ARCH is x64 on my AMD64 machine ✔️
## Summary of the Pull Request
Similar to `vswhere -latest`, show only the latest Visual Studio command prompts / developer PowerShell. This was tested by deleting the local package state and testing against fresh state with both VS2019 and VS2022 Preview installed, and indeed VS2022 Preview (both cmd and powershell) show. The other profiles were generated but hidden by default.
## References
Modification of PR #7774
## PR Checklist
* [x] Closes#11307
* [x] CLA signed. If not, go over [here](https://cla.opensource.microsoft.com/microsoft/Terminal) and sign the CLA
* [x] Tests added/passed
* [ ] Documentation updated. If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/terminal) and link it here: #xxx
* [ ] Schema updated.
* [x] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx
## Detailed Description of the Pull Request / Additional comments
The sort algorithm is the same basic algorithm I used in https://github.com/microsoft/vswhere. It sorts first by installation version with a secondary sort based on the install date in case the installation versions are the same.
## Validation Steps Performed
With both VS2019 and VS2022 Preview installed, I made sure the initial state was expected, and tried different combinations of hiding and unhiding generated entries, and restarted Terminal to make sure my settings "stuck".
