Better process implementation (#491)

* Initial implementation of KProcess

* Some improvements to the memory manager, implement back guest stack trace printing

* Better GetInfo implementation, improve checking in some places with information from process capabilities

* Allow the cpu to read/write from the correct memory locations for accesses crossing a page boundary

* Change long -> ulong for address/size on memory related methods to avoid unnecessary casts

* Attempt at implementing ldr:ro with new KProcess

* Allow BSS with size 0 on ldr:ro

* Add checking for memory block slab heap usage, return errors if full, exit gracefully

* Use KMemoryBlockSize const from KMemoryManager

* Allow all methods to read from non-contiguous locations

* Fix for TransactParcelAuto

* Address PR feedback, additionally fix some small issues related to the KIP loader and implement SVCs GetProcessId, GetProcessList, GetSystemInfo, CreatePort and ManageNamedPort

* Fix wrong check for source pages count from page list on MapPhysicalMemory

* Fix some issues with UnloadNro on ldr:ro

Ryujinx.HLE/HOS/Kernel/KTlsPageInfo.cs

@@ -0,0 +1,73 @@
+namespace Ryujinx.HLE.HOS.Kernel
+{
+    class KTlsPageInfo
+    {
+        public const int TlsEntrySize = 0x200;
+
+        public ulong PageAddr { get; private set; }
+
+        private bool[] IsSlotFree;
+
+        public KTlsPageInfo(ulong PageAddress)
+        {
+            this.PageAddr = PageAddress;
+
+            IsSlotFree = new bool[KMemoryManager.PageSize / TlsEntrySize];
+
+            for (int Index = 0; Index < IsSlotFree.Length; Index++)
+            {
+                IsSlotFree[Index] = true;
+            }
+        }
+
+        public bool TryGetFreePage(out ulong Address)
+        {
+            Address = PageAddr;
+
+            for (int Index = 0; Index < IsSlotFree.Length; Index++)
+            {
+                if (IsSlotFree[Index])
+                {
+                    IsSlotFree[Index] = false;
+
+                    return true;
+                }
+
+                Address += TlsEntrySize;
+            }
+
+            Address = 0;
+
+            return false;
+        }
+
+        public bool IsFull()
+        {
+            bool HasFree = false;
+
+            for (int Index = 0; Index < IsSlotFree.Length; Index++)
+            {
+                HasFree |= IsSlotFree[Index];
+            }
+
+            return !HasFree;
+        }
+
+        public bool IsEmpty()
+        {
+            bool AllFree = true;
+
+            for (int Index = 0; Index < IsSlotFree.Length; Index++)
+            {
+                AllFree &= IsSlotFree[Index];
+            }
+
+            return AllFree;
+        }
+
+        public void FreeTlsSlot(ulong Address)
+        {
+            IsSlotFree[(Address - PageAddr) / TlsEntrySize] = true;
+        }
+    }
+}