Enhancements

Fix incorrect flag for expanding rulesets to rules.
Add support for generating Clash rule-providers in Rule mode.
Rework Clash script generator.
Change global UDP/TFO/Skip Cert Verify settings in pref configuration to comments.
Optimize codes.

base/pref.ini

@@ -76,10 +76,10 @@ time_rule=^Smart Access expire: (\d+)/(\d+)/(\d+)$|$1:$2:$3:0:0:0
 time_rule=^.*?流量:(?:.*?) 剩:(.*)$|left=$1d
 
 [node_pref]
-udp_flag=false
-tcp_fast_open_flag=false
+;udp_flag=false
+;tcp_fast_open_flag=false
 sort_flag=false
-skip_cert_verify_flag=false
+;skip_cert_verify_flag=false
 filter_deprecated_nodes=false
 append_sub_userinfo=true
 clash_use_new_field_name=false