ts: Migrate service to Horizon project (#6514)

* ts: Migrate service to Horizon project

This PR migrate the `ts` service (stored in `ptm`) to the Horizon project:
- It stubs all known IPCs.
- IpcServer consts are checked by RE.

Closes #6480

* Fix args

src/Ryujinx.Horizon/Sdk/Ts/DeviceCode.cs

@@ -0,0 +1,8 @@
+namespace Ryujinx.Horizon.Sdk.Ts
+{
+    enum DeviceCode : uint
+    {
+        Internal = 0x41000001,
+        External = 0x41000002,
+    }
+}