Handle a missing xml file by making a blank one

Signed-off-by: David Greaves <david.greaves@jollamobile.com>
Run updateQtCreatorTargets as mersdk user so sb2 targets are properly visible

Signed-off-by: David Greaves <david.greaves@jollamobile.com>
XML is associated with shared folder, not internal.

Signed-off-by: David Greaves <david.greaves@jollamobile.com>
XML key in QtCreator corrected to MerTarget.GccDumpMachine

Signed-off-by: David Greaves <david.greaves@jollamobile.com>
Add new mb2 code

Signed-off-by: David Greaves <david.greaves@jollamobile.com>