unflake graceful stop integration tests

by using a more reliable method of getting the public ip, and not one that is
e.g. a virtual interface for virtualization purposes
update es upstream to use a named threadfactory for AbstractDeallocator
Merge pull request #1405 from crate/m/grrrrrrraceful

M/grrrrrrraceful
add RelationOutput symbol and ExpressionAnalyzer

This commit adds a RelationOutput, ExpressionAnalyzer and a
RelationOutputResolver.

The ExpressionAnalyzer can be used to convert Expression
(from SQL AST) into a Symbol. Using composition over
inheritance makes it possible to easier handle nested
relations and re-use the ExpressionAnalyzer for different
sources.

The DataStatementAnalyzer is now marked as deprecated and
shouldn't be used anymore.
use ExpressionAnalyzer in CopyStatementAnalyzer
change Delete Analysis to relation structure

DeleteAnalyzedStatement now has a relation as source/target
instead of tableInfo.

In case of bulk operations there are now longer nested full
blown AnalyzedStatements but only multiple WhereClauses.