Check that both pyside2 and shiboken2 are found
Check that both pyside2 and shiboken2 are found

* It seems like packaging of these two is inconsistent, and pyside2 dev files
  being available doesn't always imply shiboken2 dev files are present. Be safe
  and check both.

baldurk/renderdoc,Zorro666/renderdoc,Zorro666/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,baldurk/renderdoc