Added a couple of 'operator new()' definitions.

Started adding Array and BinaryHeap

qse/lib/cmn/Mmgr.cpp

@@ -80,6 +80,13 @@ void operator delete (void* ptr, QSE::Mmgr* mmgr)
 	mmgr->dispose (ptr);
 }
 
+void* operator new (qse_size_t size, QSE::Mmgr* mmgr, void* existing_ptr)
+{
+	// mmgr unused. i put it in the parameter list to make this function
+	// less conflicting with the stock ::operator new() that doesn't allocate.
+	return existing_ptr;
+}
+
 #if 0
 void* operator new[] (qse_size_t size, QSE::Mmgr* mmgr)
 {

qse/lib/cmn/Mpool.cpp

@@ -182,7 +182,7 @@ QSE_END_NAMESPACE(QSE)
 
 void* operator new (qse_size_t size, QSE::Mpool* mp)
 {
-	return mp->isEnabled()? mp->allocate (): ::operator new (size, mp->getMmgr());
+	return mp->isEnabled()? mp->allocate(): ::operator new(size, mp->getMmgr());
 }
 
 void operator delete (void* ptr, QSE::Mpool* mp)
@@ -190,3 +190,8 @@ void operator delete (void* ptr, QSE::Mpool* mp)
 	if (mp->isEnabled()) mp->dispose (ptr);
 	else ::operator delete (ptr, mp->getMmgr());
 }
+
+void* operator new (qse_size_t size, QSE::Mpool* mp, void* existing_ptr)
+{
+	return existing_ptr;
+}