Fix the problem in ros: can't take off after reset

[shuaikangma]

Fixes: #4424

can't take off after reset in ros

About

https://github.com/microsoft/AirSim/issues/4424 I test reset service manually use rqt in ros, it can't take off after reset service being called. I see a commit and merge in the early version, but it may dose't work?

How Has This Been Tested?

According to the api doc: reset: This resets the vehicle to its original starting state. Note that you must call enableApiControl and armDisarm again after the call to reset.

AIrSim version: https://github.com/microsoft/AirSim/pull/4410 Unreal version: v1.7.0-linux OS version: ubuntu18.04 with ros-melodic Use default settiongs :AirSim/ros/settings/front_stereo_and_center_mono.json in https://github.com/microsoft/AirSim/pull/4410

Screenshots (if appropriate):

[microsoft-cla-retired[bot]]

All CLA requirements met.

[shuaikangma]

Fixes: ####Add collision state publish in ros, now you can see a topic named /{Vehicle_Name}/collision_state(std_msgs::Bool) to show current collision state of the vehicle named {Vehicle_Name}. False---no cllision; True---collision

About #4424

How Has This Been Tested? AIrSim version: https://github.com/microsoft/AirSim/pull/4410 Unreal version: v1.7.0-linux OS version: ubuntu18.04 with ros-melodic Use default settiongs :AirSim/ros/settings/front_stereo_and_center_mono.json in https://github.com/microsoft/AirSim/pull/4410

use rqt to publish takeoff srv and vel topic, see the change of the /{Vehicle_Name}/collision_state topic before and after colission.

Screenshots (if appropriate):

After takeoff, none of the two drone is in collision

Drone1 is in collision, Drone2 is not

Both of them are in collision

[zimmy87]

Hey @shuaikangma, thank you for submitting this PR! I tested it locally and it's working for me. However, it seems that your PR is failing the clang-format check. Please follow these steps to resolve this:

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