Add ntp and ldap client roles

roles/ntp/defaults/main.yml

roles/ntp/handlers/main.yml

roles/ntp/tasks/main.yml

roles/openLdapClient/defaults/main.yml

roles/openLdapClient/handlers/main.yml

roles/openLdapClient/tasks/configLdapClient.yml

roles/openLdapClient/tasks/installOpenLdap.yml

roles/openLdapClient/tasks/main.yml

roles/openLdapClient/templates/authconfig.j2

roles/openLdapClient/templates/idmapd.conf.j2

roles/openLdapClient/templates/ldap.conf.j2

roles/openLdapClient/templates/nsswitch.conf.j2

roles/openLdapClient/templates/pam_ldap.conf.j2

roles/openLdapClient/templates/sssd.j2

roles/openLdapClient/templates/system-auth-ac.j2