Navigate to the octagon task and surface

[doruphin]

There are symbols in the octagon bin that we can use to navigate to. Once there, we can surface on the octagon, which would be the end of our run.

Resources
Task Description

Notes

• Requires the dataset from computer vision.
• For now, just assume that the octagon task is directly in front of us, so just go forward to start finding the objects.
• There are also several objects with images on top of it that we can use for navigation. It's not in simulation as of now, message Dorson if that's something that is wanted.
• Since we are using the hover node, we would have to override the depth managed by it.

Task

• Create a node that provides forward thrust until the symbols are detected
• Once detected, provide a thrust upwards
• Create a launch file that demonstrates steelhead autonomously navigating to the task and floating back up in competition_task_octagon.world