Add fish shell completion please

[NextAlone]

System Info

• Operating System: Linux next 5.15.6-xanmod2-2 #1 SMP Wed, 08 Dec 2021 05:21:09 +0000 x86_64 GNU/Linux
• Python Version: Python 3.10.0
• Version of catkin_tools: catkin_tools 0.8.2
• ROS Distro: noetic

Build / Run Issue

• [ ] Works with catkin_make
• [ ] Works with catkin_make_isolated --merge
• [ ] Works with catkin build
• [ ] Works with catkin build -p1
• [] I did not read this

Expected Behavior

Actual Behavior

Steps to Reproduce the Issue