Add templated node#2

Merged

SteveMacenski merged 5 commits intoSteveMacenski:nav2_smac_plannerfrom

carlosluis:nav2_smac_planner

Jun 30, 2020

Commits on Jun 17, 2020

Template the node class
carlosluis
committed

Commits on Jun 20, 2020

Move node validation from A* to node class
carlosluis
committed

Commits on Jun 21, 2020

Make A* implementation templated on the node type
carlosluis
committed

Commits on Jun 27, 2020