* Improves handling of Gcode Thumbnails
* Remove Peek support
* Moves GcodeHelper to PreviewHandlerCommon
* Reverts minor change
* Skip unknown data on GcodeHelper.GetBestThumbnail
* Replaces QOI.Core with QoiImage
* Fixes spellchecker
* Reverts changes to NOTICE.md
* Minor QoiImage improvements
* Use custom QoiPixel struct
* Add MIT notice for the QOI reference code
* Fix spellcheck for the MIT notice
* Update NOTICE.md
tweaked notice a bit
* Add common csproj/vcxproj settings to Directory.Build.props
* Set TreatWarningsAsErrors to true for all c# projects
* Minor fixes in unit test projects where Analyzers where not enabled before
* Clean up Directory.Build.props
* Remove properties from ImageResizer csprojs files
* Adds the GcodeThumbnailProvider
* Registers the GcodeThumbnailProvider
* Adds Settings support
* Reverts solution changes back to original
* Corrects "Gcode" text with "G-code"
* Adds gcode thumbnail setting description
* Follow up on PR review comments
* Adds GcodePreviewHandler
* Follow up on PR review comments
* Renames assemblies following #14903
