Implemented CORE-2208: New gbak option to ignore specific tables data during the backup

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59489 65644016-39b1-43b1-bf79-96bc8fe82c15
MSVC 12 support, very first step

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59490 65644016-39b1-43b1-bf79-96bc8fe82c15
Fixed CORE-4395: execute statement on external doesn't find Firebird 2.5 database

git-svn-id: svn+ssh://svn.code.sf.net/p/firebird/code/firebird/trunk@59491 65644016-39b1-43b1-bf79-96bc8fe82c15