fix Zend\Db\Adapter\Platform\PlatformInterface::quoteIdentifierInFragment

Current implementation is wrong because quoteIdentifierInFragment and quoteIdentifier methods should work in a similar way.
quoteIdentifierInFragment shoud split string by "." and " ", thereafter call quoteIdentifier for each part.

this is recreate https://github.com/zendframework/zf2/pull/4769 , bacause repo for 4769 is deleted.