new caontainers functions

atWhere()
lastAtWhere()
contains(v)
filter(), map(), reduce(), forEach() indexed and reverse variants
fix PIDeque reverse for
fix insert with move of complex type potential segfault

libs/main/containers/pistack.h

@@ -26,6 +26,7 @@
 #define PISTACK_H
 
 #include "pivector.h"
+#include "pideque.h"
 
 template<typename T>
 class PIStack: public PIVector<T> {
@@ -37,6 +38,7 @@ public:
 	T & top() {return PIVector<T>::back();}
 	const T & top() const {return PIVector<T>::back();}
 	PIVector<T> toVector() {return PIVector<T>(*this);}
+	PIVector<T> toDeque() {return PIDeque<T>(PIVector<T>::data(), PIVector<T>::size());}
 };
 
 #endif // PISTACK_H