Optimize outbounds sorting: prioritize regex matches, followed by others

[arkxfly]

当前是订阅在最前面，现在 selector 的默认策略是选第一个，默认选中的出口不是期望的。

配置

{
          "tag": "🇭🇰 香港",
          "type": "selector",
          "filter": "(?i)港|hk|hongkong|hong kong",
          "target": "global"
 }

优化前

{
          "tag": "🇭🇰 香港",
          "type": "selector",
           "outbounds":  [
                  "subs"，
                  "hk01",
                  "hk02",
                  "hk03"
           ]
 }

优化后

{
          "tag": "🇭🇰 香港",
          "type": "selector",
           "outbounds":  [
                  "hk01",
                  "hk02",
                  "hk03",
                  "subs"
           ]
 }