fix openldap init script paas user token saving,

add config file with BASE_DN,
add async wrapper class for ldap client,
implement addUser getUser delUser,
add and implement addGroup delGroup methods

openldap/init.sh

@@ -2,7 +2,7 @@ export BASE_DN=''
 read -p "Base DN: " BASE_DN
 
 export PAAS_PASSWD=$(tr -dc 'A-Za-z0-9!"#$%&'\''()*+,-./:;<=>?@[\]^_`{|}~' </dev/urandom | head -c 256; echo)
-echo "$PAAS_PASSWD" > paas.token
+echo "$PAAS_PASSWD" -n > paas.token
 echo "Saved PAAS Authentication Token (password) to paas.token"
 
 envsubst '$BASE_DN' < auth.template.ldif > auth.ldif