Optimizations (#1680)

* Optimizations

1) Some headers simplified for better compilation time
2) Some templates simplified for smaller executable size
3) Eliminate std::future to fix compilation for mingw64
4) PKG installation can be cancelled now
5) cellGame fixes
6) XAudio2 fix for mingw64
7) PPUInterpreter bug fixed (Clang)

* any_pod<> implemented

Aliases: any16, any32, any64
rsx::make_command fixed

3rdparty/XAudio2_7/comdecl.h

@@ -21,7 +21,13 @@
 // GUID definitions by defining the INITGUID preprocessor constant or by linking
 // to a GUID library.  This works in either C or C++.
 
-#ifdef __cplusplus
+#ifndef _MSC_VER
+
+#define DEFINE_UUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) __CRT_UUID_DECL(name, 0x##l, 0x##w1, 0x##w2, 0x##b1, 0x##b2, 0x##b3, 0x##b4, 0x##b5, 0x##b6, 0x##b7, 0x##b8)
+#define DEFINE_CLSID(className, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) class className; DEFINE_UUID(className, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)
+#define DEFINE_IID(interfaceName, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) struct interfaceName; DEFINE_UUID(interfaceName, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)
+
+#elif __cplusplus
 
     #define DECLSPEC_UUID_WRAPPER(x) __declspec(uuid(#x))
     #ifdef INITGUID