* use packet handlers code for login custom_query
* initial broken implementation for ecs-only login
* fixes
* run Update schedule 60 times per second and delete code related to run_schedule_sender
* fix tests
* fix online-mode
* reply to query packets in a separate system and make it easier for plugins to disable individual replies
* remove unused imports
* start organizing packet_handling more by moving packet handlers into their own functions
* finish writing all the handler functions for packets
* use macro for generating match statement for packet handler functions
* fix set_entity_data
* update config state to also use handler functions
* organize az-client file structure by moving things into plugins directory
* fix merge issues