Split Escaper interface and remove unused UnEscaper
Add .gitattributes
Add PDOValueEscaper
Run composer update from PHPUnit bootstrap

Change-Id: Ieb6411b90c531ca6fff891e2be66387209ea1135
Add stub for StandaloneQueryInterface

Change-Id: I0b4b9935cada52f11accff1f7c167b34e77ce42d
Work on standalone insertion code

Change-Id: I6babcb372447fffc84f8c41873ea4e041e2026fb
Remove ValueInserter as it is not really needed
Verify that insert throws InsertFailedException when applicable
Add addtional SQL building interfaces
Improve StandaloneQueryInterfaceTest
Implement PDOQueryInterface::update
Implement PDOQueryInterface::delete
Replaced ResultIterator by PHPs native Iterator interface. The interface signature is the same
Further implement PDOQueryInterface::select
Add .idea to gitignore
Improve phpnit bootstarpping
Fix import
Implement PDOQueryInterface::getInsertId
Rename Standalone dir/ns to PDO
Add MySQL implementation stubs for the QueryInterface SQL builders