feat: 添加tls sni 嗅探

# Conflicts:
#	tunnel/statistic/tracker.go
#	tunnel/tunnel.go

dns/enhancer.go

@@ -74,6 +74,12 @@ func (h *ResolverEnhancer) FindHostByIP(ip net.IP) (string, bool) {
 	return "", false
 }
 
+func (h *ResolverEnhancer) InsertHostByIP(ip net.IP, host string) {
+	if mapping := h.mapping; mapping != nil {
+		h.mapping.Set(ip.String(), host)
+	}
+}
+
 func (h *ResolverEnhancer) PatchFrom(o *ResolverEnhancer) {
 	if h.mapping != nil && o.mapping != nil {
 		o.mapping.CloneTo(h.mapping)