[Localization] Move PowerToys Run string resources from xaml files to resx

[arjunbalgovind]

Summary of the Pull Request

What is this about?
This PR removes all the language xaml files in the PowerToys Run projects and plugin projects and adds an english resx file with the strings, and enables its localization on the pipeline. The Internationalization related classes in Wox.Core.Resources were also removed as they were no longer required.

PR Checklist

• Applies to [Localization] Move PowerToys Run resources to resx files instead of xaml files #6056
• CLA signed. If not, go over here and sign the CLA
• Tests passed

Info on Pull Request

What does this include?

• en.xaml files converted to Resources.resx for all launcher projects (manually with some Ctrl+F and Ctrl+H magic along with resgen)
• Replaced all calls to GetTranslation by directly referencing the resource with the statement ProjectName.Properties.Resources.resourceName.
• The Internationalization and Language related classes were removed since there were used only for the Language xaml files. Since this contained GetTranslation, the GetTranslation method was removed from IPublicAPI as well.
• Modified the tests which checked the number of mocked calls to GetTranslation. Instead of checking for a call with a resource name, it was changed to check the values set for the context menu item titles.
• For all the projects were resx files were added, the Resource class was set to public, and the Assembly neutral language was set to en-us. This is the default resource language that will be included in the dll. All other resources would appear in the file path structure langCode\ProjectName.resources.dll.
• Removed all language xaml files for launcher projects from the installer.
• Removed the wox settings xaml files present in some of the Plugin projects. These were used by Wox in their settings, however we do not require them in PowerToys Run.
• Added LocProject.json for all the projects to enable localization on the pipeline

Pending Work (to be done in a separate PR)

• Remove unused Wox strings
• Some strings are still hardcoded and should be added to the resx files.

Validation Steps Performed

How does someone test & validate?

• Validated that all the plugins run in launcher from VS.
• Validated that the installer builds and launcher works from the installer.
• Validated with a dummy Resources.fr.resx for indexer plugin with a few strings modified that the French resources are loaded when the OS language is changed to French.
• Validate that the resx and lcl files are generated on the CDPX pipeline

[dsrivastavv]

LGTM!