CBooRenderer: Use emplace_back() where applicable
CBooRenderer: Use emplace_back() where applicable

Given the appended types consist of trivial types, it's more efficient
in this context to construct the data in place over using push_back,
which will cause a redundant copy (move semantics on trivial types are a
copy).

AxioDL/PathShagged,AxioDL/PathShagged,AxioDL/PathShagged