Foxy devel

[amelhassan]

Fixes

Description of the changes:

• The driver launch file now succesfully spins up the robot and joint state publishers.
• Removed unnecessary nodelet plugin file.
• Body tracking code was updated for ROS2.
• CI for foxy on Linux was added.

Before submitting a Pull Request:

• [x] I reviewed CONTRIBUTING.md
• [x] I built my changes locally
• [x] I tested my changes with a device

I tested changes on:

• [x] Windows
• [ ] Linux

[amelhassan]

@ooeygui A few changes were made to the Azure_Kinect_ROS_Driver foxy branch.