fixed build of 2D graphics library Cairo on Windows (MS Visual Studio Code)
- avoid continous rebuild (changed git reference from tag to commit hash)
- chaining operator && not working correctly in PATCH_COMMAND -> splitted in two CMake COMMANDs
- mintty started in users home so output of configure (started by autogen.sh) was not found by BUILD_COMMAND -> added --dir ${CAIRO_SOURCE_DIR}
- moved duplicate autogen.sh arguments to CAIRO_AUTOGEN_ARGS variable
- fixed whitespace errors brought in by packaging/cairo.patch