Display the provisioned version of docker tool kits

For debug purpose, print the installed version of docker,
docker-compose, and docker-engine. Because 'docker info' is related to
the docker-engine, postpone calling the command until docker virtual
machine has been created.

Change-Id: I4c869b7122b831b7f22c9c3846ac9cbe47c3b355
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Liang Qi <liang.qi@qt.io>

coin/provisioning/common/linux/docker.sh

@@ -42,11 +42,12 @@ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubun
 sudo apt-get update
 sudo apt-get install docker-ce -y
 sudo usermod -a -G docker $USER
-sudo docker info
+sudo docker --version
 
 # Download and install the docker-compose extension.
 sudo curl -L https://github.com/docker/compose/releases/download/1.21.0/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose
 sudo chmod +x /usr/local/bin/docker-compose
+sudo docker-compose --version
 
 # Install Avahi to discover Docker containers in the test network
 sudo apt-get install avahi-daemon -y

coin/provisioning/common/macos/docker.sh

@@ -58,6 +58,8 @@ else
     curl $url -o $target_file
 fi
 sudo installer -pkg $target_file -target /
+docker --version
+docker-compose --version
 
 # Start testserver provisioning
 case ${BASH_SOURCE[0]} in

coin/provisioning/common/shared/testserver/docker_testserver.sh

@@ -46,6 +46,9 @@ case $1 in
     *) ;;
 esac
 
+# Display system-wide information of docker-engine
+docker info
+
 # Sort files by their SHA-1, and then return the accumulated result
 sha1tree () {
     # For example, macOS doesn't install sha1sum by default. In such case, it uses shasum instead.