adapter_types -> plugins
Use factory.packages instead of global PACKAGES

consolidate dbt.ui, move non-rpc node_runners into their tasks
move parse_cli_vars into config.utils
get rid of logger/exceptions requirements in dbt.utils

Moved some relation logic out of adapters and into contracts
Fixed a typo in a type name
Fixed an issue where tests could fail based on color settings
Fixed the type analysis for adapter plugins/factory
Swapped more concrete tyeps out for protocols
Finally removed PACKAGES global
Added unit tests