*Audio Playback*

Content API:
 - Enabling CORS for access from Blazor app
Web Server:
 - Content API URL environment config
 - Web Audio API JS Interop layer in TypeScript
 - HttpClient configs
Web Client:
 - Audio Tack player controls
 - Audio Player example page
 - Audio Interop Service Layer
 - Named HttpClients

DeepDrftContent/appsettings.Development.json

@@ -4,5 +4,13 @@
       "Default": "Information",
       "Microsoft.AspNetCore": "Warning"
     }
+  },
+  "CorsSettings": {
+    "AllowedOrigins": [
+      "http://localhost:5070",
+      "https://localhost:5071",
+      "http://localhost:3000",
+      "http://127.0.0.1:5070"
+    ]
   }
 }