Enhance PDF viewer with annotations and WebAssembly

Added support for advanced annotation tools, including signature and stamp management, along with accessibility improvements. Introduced WebAssembly binaries (`qcms_bg.wasm`, `quickjs-eval.wasm`, `openjpeg.wasm`, `jbig2.wasm`) for enhanced performance in color management, JavaScript execution, and image decoding.

Implemented a JavaScript fallback (`openjpeg_nowasm_fallback.js`) for environments without WebAssembly support. Updated `Details.cshtml` to include a PDF viewer popup and added a new Razor Page (`ViewPdf.cshtml`) for secure PDF file access. Registered `.mjs` MIME type in `Program.cs` for PDF.js compatibility.

Enhanced localization with translations for multiple languages in `viewer.ftl` and added new icons, dialogs, and accessibility features. Updated `DXApp.sln` to include a new project for template management. These changes improve functionality, modularity, and user experience.

DXApp.TemplateKitProject/wwwroot/js/pdfjs/web/images/toolbarButton-viewAttachments.svg

@@ -0,0 +1,3 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M3.5 3.75C3.5 1.67879 5.17879 0 7.25 0C9.32121 0 11 1.67879 11 3.75V10.25C11 11.4922 9.99221 12.5 8.75 12.5C7.50779 12.5 6.5 11.4922 6.5 10.25V3.5H8V10.25C8 10.6638 8.33621 11 8.75 11C9.16379 11 9.5 10.6638 9.5 10.25V3.75C9.5 2.50721 8.49279 1.5 7.25 1.5C6.00721 1.5 5 2.50721 5 3.75V10.75C5 12.8208 6.67921 14.5 8.75 14.5C10.8208 14.5 12.5 12.8208 12.5 10.75V3.5H14V10.75C14 13.6492 11.6492 16 8.75 16C5.85079 16 3.5 13.6492 3.5 10.75V3.75Z" fill="black"/>
+</svg>