自动开启服务器转发和iptables NAT（测试），升级xorm版本

[wsczx]

No description provided.

[codecov-commenter]

Codecov Report

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

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

@@            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	Coverage Δ
server/handler/link_tun.go	0.00% <0.00%> (ø)
server/handler/link_tunnel.go	1.34% <0.00%> (-0.02%)	⬇️
server/handler/link_auth.go	0.00% <0.00%> (ø)
server/sessdata/session.go	35.13% <0.00%> (+0.23%)	⬆️
server/dbdata/user_act_log.go	30.00% <0.00%> (+1.79%)	⬆️

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[bjdgyc]

需要兼容使用iptables和不使用的情况