bcat:u: Implement EnumerateDeliveryCacheDirectory (#768)

* bcat:u: Implement EnumerateDeliveryCacheDirectory

Basic implementation `EnumerateDeliveryCacheDirectory` call to `IDeliveryCacheStorageService` according to RE.  (close #622)
I've added some comments in the whole service for when we'll implement a real bcat implementation.
For now, all games who use it isn't playable because of GPU.

* Use Array instead of List

* Add ApplicationLaunchPropertyHelper

* Fix helper

* Fix helper 2

* Fix ApplicationLaunchProperty Default

* Fix ApplicationLaunchProperty 2

* Fix folder

Ryujinx.HLE/HOS/Services/Bcat/ResultCode.cs

@@ -0,0 +1,14 @@
+namespace Ryujinx.HLE.HOS.Services.Bcat
+{
+    enum ResultCode
+    {
+        ModuleId       = 122,
+        ErrorCodeShift = 9,
+
+        Success = 0,
+
+        NullArgument = (2  << ErrorCodeShift) | ModuleId,
+        NullSaveData = (31 << ErrorCodeShift) | ModuleId,
+        NullObject   = (91 << ErrorCodeShift) | ModuleId
+    }
+}