refactor PluginLogStreamConsumer to be log level configurable
refactor for dbexecutors

major refactoring to use dbexecutor implementations to make calls to psql / jdbc / etc directly instead of sql-maven plugin

the primary reason is that DBSteward postgresql compiler generates dollar-quoted function definitions, and while JDBC postgresql drivers did not always understand dollar-quoting, they still cut up statements at the semi-colon, making loading of pl/pgsql functions with semicolons in the their bodies impossible.