add cluster admin support for user_list method
add cluster admin support for user_exists method
add cluster admin support for user_create method
add cluster admin support for user_chpass method
add cluster admin support for user_remove method
add cluster admin support for user.present state function
add cluster admin support for user.absent state function
db_exists method should be called with full arg list
user_exists method should be called with full arg list
Merge pull request #16269 from bbinet/influxdb-admin-user

Influxdb admin user