///Delete the whole branch of provided root node along with the root node
static void DeleteBranch(BTNode root){
var graph = root.graph;
foreach ( var node in root.GetAllChildNodesRecursively(true).ToArray() )
graph.RemoveNode(node);
}
///Delete the whole branch of provided root node along with the root node
static void DeleteBranch(BTNode root){
var graph = root.graph;
foreach ( var node in root.GetAllChildNodesRecursively(true).ToArray() )
graph.RemoveNode(node);
}