pwcli: implement 'list review' command for stgit mode
pwcli: implement 'list review' command for stgit mode

Get list of patches in Under Review state by checking the patches from pending
branch with 'stg series' command. So in stgit mode we in practise omit the
Under Review state in patchwork server.

Signed-off-by: Kalle Valo <7081a7d99b8c74c0698a728df19e3915a995d7e1@codeaurora.org>

kvalo/pwcli,kvalo/pwcli