## 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.
Set keyword flags on all events so those sharing a provider with
telemetry do not fire unless tracing is enabled
## PR Checklist
* [x] Closes#10093
* [x] I work here
* [x] Tests passed
* [x] Documentation added in `til.h` about how keywords work and at the
only other site of keywords we define in the Host project tracing
files.
## Detailed Description of the Pull Request / Additional comments
I initially thought that we would need to split providers here to
accomplish this... but @DHowett helped me realize that might be a lot of
additional metadata and bloat binary size. So with help from a friend
from fundamentals, I realized that we could use Keywords to
differentiate here. We can no longer define 0 keywords as that
represents an any/all scenario. Every `TraceLoggingWrite` event now
needs a keyword. When our events have a keyword, they're not included in
any trace. Additionally, when we have an explicit keyword to check that
is different from the ones used for the telemetry pipeline, we can
ensure that we only do "hard work" to generate debug trace data when an
"ALL" type listener like TraceView or Windows Performance Recorder with
our profiles is listening to these providers for ALL keyworded events.
## Validation Steps Performed
- [x] - Built with full release build config to confirm performance is
worse than dev builds BECAUSE of the telemetry event collector camping
our provider and triggering full trace event generation on shared
providers.
- [x] - Built with full release build config to enable statistics
collection and validated trace event collection is excluded and trace
event short-circuits work with this change.
- [x] - Checked that TraceView still sees both telemetry and tracing
events
- [x] - Checked that WPR with our .wprp profile sees both telemetry and
tracing events
Fix memory leak that occurs from not dispatching the end of sequences on all actions (since it is buffering up all characters for trace reasons.) Also don't bother storing if no one is listening.
## PR Checklist
- [x] Closes#8283
* [x] Fixes leak found while bumbling around.
* [x] I work here.
## Detailed Description of the Pull Request / Additional comments
- We trace all the things leading up to the Action phase in the VT parser for ETW tracing to make debugging the parser easier, but we made two mistakes.
- At some point, three of the actions (related to print/execute) weren't dispatching the stored up sequence to tracing and not clearing it. So printing/executing in a giant run over and over caused the vector to bloat and bloat and bloat forever.
- We're storing things even when no one is listening. That's a waste.
## Validation Steps Performed
- Watched it grow every time I did `type big.txt` under `taskman.exe`. Then watched it not do that after.
- I did technically WPR it to figure out this was the culprit.
<!-- Enter a brief description/summary of your PR here. What does it fix/what does it change/how was it tested (even manually, if necessary)? -->
## Summary of the Pull Request
- Enables auditing of Virtual Terminal libraries (input, adapter, parser)
<!-- Please review the items on the PR checklist before submitting-->
## 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
<!-- Provide a more detailed description of the PR, other things fixed or any additional comments/features here -->
## 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.
<!-- Describe how you validated the behavior. Add automated tests wherever possible, but list manual validation steps taken as well -->
## 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
