Move most of signal handling to Ryujinx.Cpu project (#6128)

* Move most of signal handling to Ryujinx.Cpu project

* Format whitespace

* Remove unused member

* Format whitespace

* This does not need to be public anymore

src/ARMeilleure/Memory/IJitMemoryAllocator.cs

@@ -4,7 +4,5 @@ namespace ARMeilleure.Memory
     {
         IJitMemoryBlock Allocate(ulong size);
         IJitMemoryBlock Reserve(ulong size);
-
-        ulong GetPageSize();
     }
 }

src/ARMeilleure/Memory/MemoryManagerType.cs

@@ -31,7 +31,7 @@ namespace ARMeilleure.Memory
         HostMappedUnsafe,
     }
 
-    static class MemoryManagerTypeExtensions
+    public static class MemoryManagerTypeExtensions
     {
         public static bool IsHostMapped(this MemoryManagerType type)
         {