Missing Apache license template in multiple community offerings

[delmeherbert]

@ryutamura you are missing the required Apache 2.0 license template in several community workflows.
Please update the README.md file to include the license template as cited under Contributions>Community Template the gateway-workflows README: https://github.com/bluecatlabs/gateway-workflows/blob/master/README.md

https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/service_point_watcher
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/sdwan_firewall_rule_updater
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/register_mac_address
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/query_unused_mac_address
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/query_logger
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/network_exporter
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/mist_importer
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/meraki_importer
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/lease_history_mac
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/lease_history_ip
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/flip_normal_dr
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/bulk_register_user
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/bulk_register_mac_address
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/bulk_register_ip_address
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/bulk_register_group
https://github.com/bluecatlabs/gateway-workflows/tree/master/Community/SubnetStatus