IPC services refactoring (#726)

* IPC services refactoring

- Use custom Attributes to handle services.
- Add a way to set the permissions and fix the bsd service to use it.
- Little cleanup.
- C#7.1 is required.

* fix var name

* fix syntax

* Change Permission to Parameter

* Delete BsdServicePermissionLevel.cs

* Fix Linq

2 files changed, 4 insertions, 2 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Caps/IAlbumAccessorService.cs b/Ryujinx.HLE/HOS/Services/Caps/IAlbumAccessorService.cs
index 82da2451..f10095ed 100644
--- a/Ryujinx.HLE/HOS/Services/Caps/IAlbumAccessorService.cs
+++ b/Ryujinx.HLE/HOS/Services/Caps/IAlbumAccessorService.cs
@@ -3,13 +3,14 @@ using System.Collections.Generic;
 
 namespace Ryujinx.HLE.HOS.Services.Caps
 {
+    [Service("caps:a")]
     class IAlbumAccessorService : IpcService
     {
         private Dictionary<int, ServiceProcessRequest> _commands;
 
         public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => _commands;
 
-        public IAlbumAccessorService()
+        public IAlbumAccessorService(ServiceCtx context)
         {
             _commands = new Dictionary<int, ServiceProcessRequest>
             {
diff --git a/Ryujinx.HLE/HOS/Services/Caps/IScreenshotService.cs b/Ryujinx.HLE/HOS/Services/Caps/IScreenshotService.cs
index 9273b394..e37c51e2 100644
--- a/Ryujinx.HLE/HOS/Services/Caps/IScreenshotService.cs
+++ b/Ryujinx.HLE/HOS/Services/Caps/IScreenshotService.cs
@@ -3,13 +3,14 @@ using System.Collections.Generic;
 
 namespace Ryujinx.HLE.HOS.Services.Caps
 {
+    [Service("caps:ss")]
     class IScreenshotService : IpcService
     {
         private Dictionary<int, ServiceProcessRequest> _commands;
 
         public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => _commands;
 
-        public IScreenshotService()
+        public IScreenshotService(ServiceCtx context)
         {
             _commands = new Dictionary<int, ServiceProcessRequest>
             {