Astra driver revamp

[pedroperrusi]

Hello everyone,

In my lab we need to integrate Astra Pro cameras into our workflow, so I started to work on its revamp as described in #19 . I've merged the ROS2 repo with the latest changes in the original ROS driver.

Changes include:

• Compiles in ROS2 Foxy
• ROS2 parameter integration
• Example lunch file
• Device detection working with Astra PRO

Still working on

• Depth frame acquisition (callbacks don't work)

I'd love to hear your insights about it