自动开启服务器转发和iptables NAT（测试），升级xorm版本

[codecov-commenter]

Codecov Report

Base: 22.70% // Head: 22.64% // Decreases project coverage by -0.05% :warning:

Coverage data is based on head (ca82f40) compared to base (ff018a7). Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #189 +/- ## ========================================== - Coverage 22.70% 22.64% -0.06% ========================================== Files 61 61 Lines 3674 3700 +26 ========================================== + Hits 834 838 +4 - Misses 2706 2728 +22 Partials 134 134 ``` | [Impacted Files](https://codecov.io/gh/bjdgyc/anylink/pull/189?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bjdgyc) | Coverage Δ | | |---|---|---| | [server/handler/link\_tun.go](https://codecov.io/gh/bjdgyc/anylink/pull/189/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bjdgyc#diff-c2VydmVyL2hhbmRsZXIvbGlua190dW4uZ28=) | `0.00% <0.00%> (ø)` | | | [server/handler/link\_tunnel.go](https://codecov.io/gh/bjdgyc/anylink/pull/189/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bjdgyc#diff-c2VydmVyL2hhbmRsZXIvbGlua190dW5uZWwuZ28=) | `1.34% <0.00%> (-0.02%)` | :arrow_down: | | [server/handler/link\_auth.go](https://codecov.io/gh/bjdgyc/anylink/pull/189/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bjdgyc#diff-c2VydmVyL2hhbmRsZXIvbGlua19hdXRoLmdv) | `0.00% <0.00%> (ø)` | | | [server/sessdata/session.go](https://codecov.io/gh/bjdgyc/anylink/pull/189/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bjdgyc#diff-c2VydmVyL3Nlc3NkYXRhL3Nlc3Npb24uZ28=) | `35.13% <0.00%> (+0.23%)` | :arrow_up: | | [server/dbdata/user\_act\_log.go](https://codecov.io/gh/bjdgyc/anylink/pull/189/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bjdgyc#diff-c2VydmVyL2RiZGF0YS91c2VyX2FjdF9sb2cuZ28=) | `30.00% <0.00%> (+1.79%)` | :arrow_up: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bjdgyc). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=bjdgyc)

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[bjdgyc]

需要兼容使用iptables和不使用的情况