Make buildable with GCC in Linux

* replace GetThreadID with std::this_thread.getId()
* name all anonymous structs and unions that contain non-trivially constructable objects
* made default constructor for big endian type noexcept to make it work with std::atomic
* move instantiated specialized template function members ouside of the class definition to comply with the standard
* added default instantiation for template parameter "=nullptr"
* used the C++11 standardized thread_local instead of the __declspec(thread)
* added transitional definitions to bridge the microsoft specific calls (compare and exchange and aligned alloc)
* removed cyclic dependency between Emulator->CPUThreadManager->CPUThread->SMutex->Emulator->...
* fixed some instances of indentation by space instead of tabs
* surrounded some unused code with an #if 0 block to make sure it doesn't compile

rpcs3/Emu/Memory/Memory.h

@@ -1,5 +1,6 @@
 #pragma once
 #include "MemoryBlock.h"
+#include <vector>
 
 enum MemoryType
 {
@@ -912,10 +913,10 @@ public:
 		return m_ptr;
 	}
 
-    T operator [](int index)
-    {
-        return *(m_ptr + index);
-    }
+	T operator [](int index)
+	{
+		return *(m_ptr + index);
+	}
 
 	template<typename T1>
 	operator const mem_t<T1>() const