POCO_STATIC: has to be set when using poco as static library
POCO_NO_ATUMATIC_LIBS: CMake config module will find the correct libraries.
Don't need to guess in headers.
- Add missing CMakeLists.txt
- Use POCO_ macros to improve code structure in XCode/VisualStudio
- Better ODBC detection
- Remove unnecessary commented out code
The CMake documentation recommends explicitly listing source files, but because CMake is not the primary build system GLOB patterns are used for the moment.