HLE: Fix integer sign inconcistency accross the codebase (#2222)

* Make all title id instances unsigned

* Replace address and size with ulong instead of signed types

Long overdue change.
Also change some logics here and there to optimize with the new memory
manager.

* Address Ac_K's comments

* Remove uneeded cast all around

* Fixes some others misalignment

Ryujinx.HLE/HOS/Kernel/Common/KernelTransfer.cs

@@ -50,7 +50,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Common
             if (currentProcess.CpuMemory.IsMapped(address) &&
                 currentProcess.CpuMemory.IsMapped(address + (ulong)size - 1))
             {
-                value = MemoryHelper.ReadAsciiString(currentProcess.CpuMemory, (long)address, size);
+                value = MemoryHelper.ReadAsciiString(currentProcess.CpuMemory, address, size);
 
                 return true;
             }