feat(ivy): namespaced attributes added to output instructions (#24386)

NOTE: This does NOT add parsing of namespaced attributes

- Adds AttributeMarker for namespaced attributes
- Adds test for namespaced attributes
- Updates AttributeMarker enum to use CamelCase, and not UPPER_CASE names

PR Close #24386

packages/core/src/render3/di.ts

@@ -262,7 +262,7 @@ export function injectAttribute(attrNameToInject: string): string|undefined {
   if (attrs) {
     for (let i = 0; i < attrs.length; i = i + 2) {
       const attrName = attrs[i];
-      if (attrName === AttributeMarker.SELECT_ONLY) break;
+      if (attrName === AttributeMarker.SelectOnly) break;
       if (attrName == attrNameToInject) {
         return attrs[i + 1] as string;
       }