Add ZoomIt panoramic screenshot functionality (#46506)

<!-- 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
This adds several ZoomIt features:

- Panorama / scrolling screenshots. The image reconstruction happens
based on visual cues and accuracy depends on scroll speed during the
capture.
- Text extraction when snipping.
- Break timer improvements (the break timer is now a screen saver,
offering the possibility to lock the computer).
- Functionality for standalone clip trimming is present but not exposed
in the XAML UI.


<!-- Please review the items on the PR checklist before submitting-->
## PR Checklist

- [ ] Closes: #xxx
<!-- - [ ] Closes: #yyy (add separate lines for additional resolved
issues) -->
- [x] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [ ] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [ ] **Documentation updated:** If checked, please file a pull request
on [our docs
repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys)
and link it here: #xxx

<!-- 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

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

The build is successful both with PowerToys and as a standalone
Sysinternals executable. We ensured that the features behave as expected
and that no regressions are introduced.

---------

Co-authored-by: Mark Russinovich <markruss@ntdev.microsoft.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: markrussinovich <markrussinovich@users.noreply.github.com>
Co-authored-by: MarioHewardt <marioh@microsoft.com>

.github/actions/spell-check/allow/zoomit.txt

@@ -1,9 +1,23 @@
+accelscroll
 acq
+adr
+Adr
 APPLYTOSUBMENUS
 AUDCLNT
+axisdefer
+axisflip
+axisstart
 bitmaps
+BREAKSCR
 BUFFERFLAGS
+Cands
+capturepath
 centiseconds
+CLASSW
+coeffs
+coprime
+CREATEDIBSECTION
+crossfades
 Ctl
 CTLCOLOR
 CTLCOLORBTN
@@ -11,53 +25,163 @@ CTLCOLORDLG
 CTLCOLOREDIT
 CTLCOLORLISTBOX
 CTrim
+ddy
 DFCS
 dlg
 dlu
 DONTCARE
+downsample
 DRAWITEM
 DRAWITEMSTRUCT
+droppedband
+Droppedband
+dsum
+dupburst
+dupsegments
 DWLP
 EDITCONTROL
 ENABLEHOOK
+expectedlock
+fastscroll
 FDE
 GETCHANNELRECT
 GETCHECK
+GETSCREENSAVEACTIVE
+GETSCREENSAVETIMEOUT
 GETTHUMBRECT
 GIFs
+hcfdark
+hcfwhitespace
 HTBOTTOMRIGHT
 HTHEME
+htol
+ICONINFORMATION
+ICONWARNING
+Inj
+jumprecover
 KSDATAFORMAT
+latestcapture
+ldx
 LEFTNOWORDWRAP
+legitjumps
 letterbox
 lld
+llu
+llums
 logfont
+lookback
 lround
+lte
+luma
+Luma
+manualdrop
+maskcache
+maxstep
 MENUINFO
 mic
+middledrop
+middledrop
 MMRESULT
+momentumreversal
+mrate
+mrt
+narrowstrip
+ncapture
+ncm
+nduplicates
+niterations
+nmonitor
+NONCLIENTMETRICS
+nonvle
+nredraw
+nstop
+nsubpixel
+ntorn
+nvw
+osc
 OWNERDRAW
 PBGRA
+periodictrap
 pfdc
 playhead
+pointerreuse
 pwfx
+Qpc
 quantums
+RCZOOMITSCR
+realcapture
 REFKNOWNFOLDERID
 reposted
+SCREENSAVE
+SCRNSAVE
+SCRNSAVECONFIGURE
+scrnsavw
+Scrnsavw
+scrollramp
 SCROLLSIZEGRIP
+selftest
+SETBARCOLOR
+SETBKCOLOR
 SETDEFID
 SETRECT
+SETSCREENSAVETIMEOUT
 SHAREMODE
 SHAREVIOLATION
+shortlist
+slowthenfast
+smallstart
+SNIPOCR
+ssi
+startuprecovery
+stf
+stopafter
 STREAMFLAGS
 submix
+sxx
+sxy
+syy
+tallportal
 tci
+tcsicmp
 TEXTMETRIC
+tinystep
 tme
+toolbars
 TRACKMOUSEEVENT
 Unadvise
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+vcgeq
+vdup
+vld
+vle
+Vle
+VLE
+vminq
+vmlal
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+vqaddq
+vshrn
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+vsnwprintf
+vsync
 WASAPI
 WAVEFORMATEX
 WAVEFORMATEXTENSIBLE
+wfopen
+wideportal
 wil
 WMU
+wrapjump
+wtol
+WTSSESSION
+WTSUn
+XEnd
+XStart
+XStep
+YInternal
+ZMBS
+zncc
+Zncc
+ZNCC