sip: create shared sip dir as post-install action.
sip: update 4.16.3 bottle.

Closes #33598.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
pyqt: install sip files into prefix.

Removes TODO which is now fixed

Fixes #33576.
pyqt: add 4.11.1 bottle.
vcsh 1.20141026

Bump to vcsh v1.20141026-1

Closes #33603.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>