Add new parameters for aruco search

We have constants in our basic search implementation of going in a circle. These should REALLY be parameters that we can adjust when we run the node. These constants are

• SEARCH_RADIUS: the radius of the circle we want the Rover to drive around
• SEARCH_POINTS: how many coordinates to generate (i.e. how many points should the circle of coordinates be made of)

This issue will involve editing the NavigationParameters type in src/navigator/navigator_node/types.py

Originally posted by @onkoe in https://github.com/Sooner-Rover-Team/auto_ros2/pull/156#discussion_r2831389483