feat: support sub-rule, eg.

rules:
  - SUB-RULE,(AND,((NETWORK,TCP),(DOMAIN-KEYWORD,google))),TEST2
  - SUB-RULE,(GEOIP,!CN),TEST1
  - MATCH,DIRECT

sub-rules:
  TEST2:
    - MATCH,Proxy
  TEST1:
    - RULE-SET,Local,DIRECT,no-resolve
    - GEOSITE,CN,Domestic
    - GEOIP,CN,Domestic
    - MATCH,Proxy

rules/common/final.go

@@ -13,8 +13,8 @@ func (f *Match) RuleType() C.RuleType {
 	return C.MATCH
 }
 
-func (f *Match) Match(metadata *C.Metadata) bool {
-	return true
+func (f *Match) Match(metadata *C.Metadata) (bool, string) {
+	return true, f.adapter
 }
 
 func (f *Match) Adapter() string {
@@ -32,4 +32,4 @@ func NewMatch(adapter string) *Match {
 	}
 }
 
-var _ C.Rule = (*Match)(nil)
+//var _ C.Rule = (*Match)(nil)