add pkgspec printing/fetching

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
pacinfo: use pu_find_pkgspec and add info

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
add pu_confirm

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
condense option parsing

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
pacsync: break repo search after match

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
pactrans: fix file loading

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
add transaction display and confirmation

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
add pacsift

This is still very rough and incomplete, but basic string fields (repo,
name, description, packager) can be searched.

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>