Misc cleanup (#708)

* Fix typos

* Remove unneeded using statements

* Enforce var style more

* Remove redundant qualifiers

* Fix some indentation

* Disable naming warnings on files with external enum names

* Fix build

* Mass find & replace for comments with no spacing

* Standardize todo capitalization and for/if spacing

Ryujinx.HLE/HOS/Services/Nv/NvHostChannel/NvHostChannelIoctl.cs

@@ -69,14 +69,14 @@ namespace Ryujinx.HLE.HOS.Services.Nv.NvHostChannel
                 context.Device.Gpu.PushCommandBuffer(vmm, cmdBufData);
             }
 
-            //TODO: Relocation, waitchecks, etc.
+            // TODO: Relocation, waitchecks, etc.
 
             return NvResult.Success;
         }
 
         private static int GetSyncpoint(ServiceCtx context)
         {
-            //TODO
+            // TODO
             long inputPosition  = context.Request.GetBufferType0x21().Position;
             long outputPosition = context.Request.GetBufferType0x22().Position;