Adds BgcodeThumbnailProvider and BgcodePreviewHandler (#38667)

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## Summary of the Pull Request

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## PR Checklist

- [X] **Closes:** #30352
- [X] **Communication:** I've discussed this with core contributors
already. If work hasn't been agreed, this work might be rejected
- [X] **Tests:** Added/updated and all pass
- [X] **Localization:** All end user facing strings can be localized
- [ ] **Dev docs:** Added/updated
- [X] **New binaries:** Added on the required places
- [X] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [X] [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

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## Detailed Description of the Pull Request / Additional comments


![image](https://github.com/user-attachments/assets/62c0cbbb-fbca-4bb3-82fe-696ba40da83d)


![image](https://github.com/user-attachments/assets/3f2f1346-91fb-4f49-85b9-8cd6e19e68e9)

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

- Close PowerToys if installed in your machine
- Full build the solution: PowerToys.sln
- Start PowerToys from PowerToys\x64\Debug\PowerToys.exe or
PowerToys\x64\Release\PowerToys.exe
- Toggle the "Binary G-code thumbnail previewer" setting to enable
- Open HelperFiles folder on the tests and check if the icon changes to
an image
- Check explorer preview to see if image is also shown there

---------

Co-authored-by: leileizhang <leilzh@microsoft.com>

src/common/utils/gpo.h

@@ -37,9 +37,11 @@ namespace powertoys_gpo
     const std::wstring POLICY_CONFIGURE_ENABLED_MONACO_PREVIEW = L"ConfigureEnabledUtilityFileExplorerMonacoPreview";
     const std::wstring POLICY_CONFIGURE_ENABLED_PDF_PREVIEW = L"ConfigureEnabledUtilityFileExplorerPDFPreview";
     const std::wstring POLICY_CONFIGURE_ENABLED_GCODE_PREVIEW = L"ConfigureEnabledUtilityFileExplorerGcodePreview";
+    const std::wstring POLICY_CONFIGURE_ENABLED_BGCODE_PREVIEW = L"ConfigureEnabledUtilityFileExplorerBgcodePreview";
     const std::wstring POLICY_CONFIGURE_ENABLED_SVG_THUMBNAILS = L"ConfigureEnabledUtilityFileExplorerSVGThumbnails";
     const std::wstring POLICY_CONFIGURE_ENABLED_PDF_THUMBNAILS = L"ConfigureEnabledUtilityFileExplorerPDFThumbnails";
     const std::wstring POLICY_CONFIGURE_ENABLED_GCODE_THUMBNAILS = L"ConfigureEnabledUtilityFileExplorerGcodeThumbnails";
+    const std::wstring POLICY_CONFIGURE_ENABLED_BGCODE_THUMBNAILS = L"ConfigureEnabledUtilityFileExplorerBgcodeThumbnails";
     const std::wstring POLICY_CONFIGURE_ENABLED_STL_THUMBNAILS = L"ConfigureEnabledUtilityFileExplorerSTLThumbnails";
     const std::wstring POLICY_CONFIGURE_ENABLED_HOSTS_FILE_EDITOR = L"ConfigureEnabledUtilityHostsFileEditor";
     const std::wstring POLICY_CONFIGURE_ENABLED_IMAGE_RESIZER = L"ConfigureEnabledUtilityImageResizer";
@@ -328,6 +330,11 @@ namespace powertoys_gpo
         return getUtilityEnabledValue(POLICY_CONFIGURE_ENABLED_GCODE_PREVIEW);
     }
 
+    inline gpo_rule_configured_t getConfiguredBgcodePreviewEnabledValue()
+    {
+        return getUtilityEnabledValue(POLICY_CONFIGURE_ENABLED_BGCODE_PREVIEW);
+    }
+
     inline gpo_rule_configured_t getConfiguredSvgThumbnailsEnabledValue()
     {
         return getUtilityEnabledValue(POLICY_CONFIGURE_ENABLED_SVG_THUMBNAILS);
@@ -343,6 +350,11 @@ namespace powertoys_gpo
         return getUtilityEnabledValue(POLICY_CONFIGURE_ENABLED_GCODE_THUMBNAILS);
     }
 
+    inline gpo_rule_configured_t getConfiguredBgcodeThumbnailsEnabledValue()
+    {
+        return getUtilityEnabledValue(POLICY_CONFIGURE_ENABLED_BGCODE_THUMBNAILS);
+    }
+
     inline gpo_rule_configured_t getConfiguredStlThumbnailsEnabledValue()
     {
         return getUtilityEnabledValue(POLICY_CONFIGURE_ENABLED_STL_THUMBNAILS);