[REQUIREMENT][GO service]Support to access API with LDAP authority.

Is your feature request related to a problem? Please describe.
Support to access API with LDAP authority. Java service has such feature, it should be implemented in Go service as well.

Describe the solution you'd like
Support to access API with LDAP authority. User want to bundle LDAP authority and product in each API request.
This feature is optional and configurable and have below items in config file:

#authority config
vipservice.authority.enable=false
#the time unit is minute
vipservice.authority.token.expiretime=525600
#the jwt secret
vipservice.authority.jwt.secret=#
#ldap server url
vipservice.authority.ldap.server.url=###
#ldap domain
vipservice.authority.ldap.tdomain=#######
#ldap searchbase
vipservice.authority.ldap.searchbase=###

Describe alternatives you've considered
A clear and concise description of any alternative solution or feature you've considered.

Additional context
Add any other context or screenshots about the feature request here.