## Summary of the Pull Request
Upgrade the Windows SDK to 19041 by setting `WindowsTargetPlatformMinVersion` to 17763 and `WindowsTargetPlatformVersion` to 19041.
## PR Checklist
* [x] I work here
* [x] Tests added/passed
## Validation Steps Performed
General usage of the Windows Terminal application appears fine.
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## Summary of the Pull Request
- Enables auditing of Virtual Terminal libraries (input, adapter, parser)
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## PR Checklist
* [x] Rolls audit out to more things
* [x] I work here
* [x] Tests should still pass
* [x] Am core contributor
* [x] Closes#3957
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## Detailed Description of the Pull Request / Additional comments
This is turning on the auditing of these projects (as enabled by the heavier lifting in the other refactor) and then cleaning up the remaining warnings.
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## Validation Steps Performed
- [x] Built it
- [x] Ran the tests
## Summary of the Pull Request
Refactors parsing/adapting libraries and consumers to use safer and/or more consistent mechanisms for passing information.
## PR Checklist
* [x] I work here
* [x] Tests still pass
* [x] Am a core contributor.
## Detailed Description of the Pull Request / Additional comments
This is in support of hopefully turning audit mode on to more projects. If I turned it on, it would immediately complain about certain classes of issues like pointer and size, pointer math, etc. The changes in this refactoring will eliminate those off the top.
Additionally, this has caught a bunch of comments all over the VT classes that weren't updated to match the parameters lists.
Additionally, this has caught a handful of member variables on classes that were completely unused (and now gone).
Additionally, I'm killing almost all hungarian and shortening variable names. I'm only really leaving 'p' for pointers.
Additionally, this is vaguely in support of a future where we can have "infinite scrollback" in that I'm moving things to size_t across the board. I know it's a bit of a memory cost, but all the casting and moving between types is error prone and unfun to save a couple bytes.
## Validation Steps Performed
- [x] build it
- [x] run all the tests
- [x] everyone looked real hard at it
