Describe the bug
The PTR records are not announced for services unless a Service Type Enumeration query (_services._dns-sd._udp.local) is sent on the network.

To Reproduce
Steps to reproduce the behavior:
Start MdnsLite with services defined BUT no devices on the network that will conduct a Service Type Enumeration.

Expected behavior
When MdnsLite starts and an address is acquired for the interface the service announcement should be conducted.