apm/am: Refactoring/Unstub services (#1662)

* apm: Refactoring/Unstub service

This PR implement some IPC calls of apm service:
- nn::apm::IManager is fully implemented.
- nn::apm::ISession is fully implemented (close #1633).
- nn::apm::ISystemManager is partially implemented.

nn::appletAE::ICommonStateGetter have some calls which are just a layer of apm IPC calls. What we did in some calls was wrong, it's fixed now!

Everything is checked with RE.

* abstract Apm *Server as Thog requested

* abstract ISession and fix other classes

* Address gdkchan feedback

* Fix class

* Fix Logging

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

@@ -0,0 +1,12 @@
+namespace Ryujinx.HLE.HOS.Services.Apm
+{
+    enum ResultCode
+    {
+        ModuleId       = 148,
+        ErrorCodeShift = 9,
+
+        Success = 0,
+
+        InvalidParameters = (1 << ErrorCodeShift) | ModuleId
+    }
+}