Provision macOS disable screensaver in current session

Task-number: QTQAINFRA-1244
Change-Id: I3a27d8cdee8cd7b22d86116d58009e952ab536ea
Reviewed-by: Aapo Keskimolo <aapo.keskimolo@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

coin/provisioning/qtci-macos-10.12-x86_64/005-systemsetup.sh

@@ -51,6 +51,10 @@ ExceptionDisableScreensaverPassword=105
 try
 (
     echo "Disable Screensaver"
+    # For current session
+    defaults -currentHost write com.apple.screensaver idleTime 0 || throw $ExceptionDisableScreensaver
+
+    # For session after a reboot
     mkdir -p "$HOME/Library/LaunchAgents" || throw $ExceptionDisableScreensaver
     (
         cat >"$HOME/Library/LaunchAgents/no-screensaver.plist" <<EOT

coin/provisioning/qtci-osx-10.11-x86_64/005-systemsetup.sh

@@ -51,6 +51,10 @@ ExceptionDisableScreensaverPassword=105
 try
 (
     echo "Disable Screensaver"
+    # For current session
+    defaults -currentHost write com.apple.screensaver idleTime 0 || throw $ExceptionDisableScreensaver
+
+    # For session after a reboot
     mkdir -p "$HOME/Library/LaunchAgents" || throw $ExceptionDisableScreensaver
     (
         cat >"$HOME/Library/LaunchAgents/no-screensaver.plist" <<EOT