Fix compilation against SourceMod 1.10

MacroAssembler base is now in the |sp| namespace.

DynamicHooks/hook.cpp

@@ -37,6 +37,7 @@
 #include <macro-assembler-x86.h>
 #include "extension.h"
 
+using namespace sp;
 
 // ============================================================================
 // >> DEFINITIONS

vhook.cpp

@@ -8,6 +8,7 @@ SourceHook::IHookManagerAutoGen *g_pHookManager = NULL;
 ke::Vector<DHooksManager *> g_pHooks;
 
 using namespace SourceHook;
+using namespace sp;
 
 #ifdef  WIN32
 #define OBJECT_OFFSET sizeof(void *)