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