cmake: added /bigobj option for msvc

Fixed issue with cmake generated project for msvc on develop branch

\CMakeFiles\PocoData.dir/ -c C:\work\github\poco\Data\src\StatementImpl.cpp
C:\work\github\poco\Data\src\StatementImpl.cpp : fatal error C1128: number of sections exceeded object file format limit : compile with /bigobj

Added option to handle this compiler switch.