Set up IHostEnvironment

TheXamlGuy.TaskbarGroup.Core/FileConfigurationExtensions.cs

@@ -0,0 +1,19 @@
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.FileProviders;
+
+namespace TheXamlGuy.TaskbarGroup.Core
+{
+    public static class FileConfigurationExtensions
+    {
+        public static IConfigurationBuilder SetBasePath(this IConfigurationBuilder builder, 
+            string basePath, bool createDirectory)
+        {
+            if (!Directory.Exists(basePath) && createDirectory)
+            {
+                Directory.CreateDirectory(basePath);
+            }
+
+            return builder.SetFileProvider(new PhysicalFileProvider(basePath));
+        }
+    }
+}