default Point convertPointToParent(Point p) {
        return p.add(getPosition());
    }
Converts a point from one node's coordinate system to another node's coordinate system.
This assumes that both this node and the target node are part of the same tree. That is,
both nodes have identical root nodes.

@param p  The point to convert, in this node's coordinate space (i.e. it is relative to this node's position)
@param to The target node coordinate system
@return The converted point
core/src/main/java/mrtjp/projectred/redui/RedUINode.java