Store XMLSerializationNodes in a deque instead a vector<up<>>
Store XMLSerializationNodes in a deque instead a vector<up<>>

Avoids having a heap allocation and an extra pointer chase every node,
instead it's chunked to however the c++ stdlib decides to allocate deques

steveschnepp/OpenApoc,pmprog/OpenApoc,Istrebitel/OpenApoc,steveschnepp/OpenApoc,Istrebitel/OpenApoc,pmprog/OpenApoc