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

Utilities/IdManager.h

@@ -96,7 +96,7 @@ public:
 		m_cur_id = s_first_id;
 	}
 	
-	template<typename T>
+	template<typename T = char>
 	ID_TYPE GetNewID(const std::string& name = "", T* data = nullptr, const u8 attr = 0)
 	{
 		std::lock_guard<std::mutex> lock(m_mtx_main);
@@ -155,4 +155,4 @@ public:
 
 		return true;
 	}
-};
+};