feat: skip private by default and support --proxyprivate

fix: simple-obfs wrong host

fix(ss): simple-obfs

fix(ss): udp problem

chore/fix: upgrade softwind, and fix #25

fix: allow "--testnode false" and invalid dns target will not interru…

…pt the process

feat: support base64 decode before resolve clash subscription. #22

optimize(test url): determine the correct status code based on the path

optimize: advance sudo if use gg sudo

feat: auto su