Handle arbitrary whitespaces when parsing SQL in order to apply LIMIT for MS SQL Server

Merge branch 'fix/#2318-fix-listing-table-columns-when-using-external-or-os-authentication-on-oracledb'

Close #2318
Close DBAL-831

Close #2302
Close #2303

fixes #2302

Close #2287
Close #1183

- includes extended default driver connection parameter handling
- minor refactoring

fixes #1183

Close #2182
Close #2277
Close DBAL-939

- fixes platform's COMMENT ON statement support
- implements reverse engineering for column comments
- marks boolean column type commented for distinction

fixes #2182

Close #2500
Close #2497

Close #2494

Blacklist one more phpunit mock objects version

The last release is still buggy, as proven here:
https://travis-ci.org/doctrine/dbal/builds/155125956
and as confirmed here:
https://github.com/sebastianbergmann/phpunit-mock-objects/pull/324

Forward port #2484

Some packages are using symfony/console 3.0 and newer as requirement, and doctrine/dbal works well with this contstrain.

Remove unused parameter

Avoid phpunit-mock-objects v3.2.4

It has a bug that makes it incompatible with the doctrine dbal test
suite, see
https://github.com/sebastianbergmann/phpunit-mock-objects/issues/322
Fixes #2475

Updated tests invocation

Do not generate FROM clause in QueryBuilder if no tables specified

Fix list foreign keys SQL database parameter evaluation

fix dbal tests on windows