First pass at songs view

Using data grid for songs view. Added FileSystemUtil for async folder traversal

.vscode/launch.json

@@ -0,0 +1,15 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch",
+            "type": "xamarin",
+            "request": "launch",
+            "package": "com.your.app.package",
+            "intent": ""
+        }
+    ]
+}