Include exiv2.hpp and KImageAnnotator outside of #ifdef HAVE_TIFF
Otherwise having support for tiff disabled can lead to build errors, like "app/main.cpp:210:5: error: 'kImageAnnotator' has not been declared".
Otherwise having support for tiff disabled can lead to build errors, like "app/main.cpp:210:5: error: 'kImageAnnotator' has not been declared".