This commit passes routehints all the way from when/if the user passes
them from the cli all the way to the backend loop server. If private is
used, this commit passes that boolean down to different stages, where it
is then converted into routehints.
main: add --private and --route_hints to quote
Adds --private and --route_hints flags to quote cli
With the restriction in place, it is not possible to use the
--conf_target and --fast flag at the same time. To avoid similar
problems in the future, the check for the number of amounts is
removed completely.