Remove Qt SVG and Qt OpenGL as hard dependencies
Qt SVG is not used in the frontend (no SVGs are rendered).
Neither is Qt OpenGL used. Qt OpenGL is discouraged anyway.
if(WIN32 AND NOT UNIX)
file(GLOB DLLs *.dll)
file(GLOB ICOs *.ico)
install(FILES
${DLLs}
${ICOs}
DESTINATION ${target_library_install_dir})
endif(WIN32 AND NOT UNIX)