delete confutil/go.mod for module path error

delete confutil/go.mod for module path error

update configutil with noflag

update configutil with noflag

fix httpx compile error 'not found headerutil'

fix httpx compile error 'not found headerutil'

xtools first version

xtools feature:
1.config tools
2.flag tools
3.http tools
4.mq tools
5.other develop tools