Does not compile with Particle mesh devices

[mawrob]

Testing on the Argon I cannot get this to compile. One issue seems to be related to the SdFat 0.0.7 library https://github.com/greiman/SdFat-Particle that does not work with mesh (https://community.particle.io/t/sdfat-library-not-working-with-boron/45509/13). There now appears to be a new version of SdFat that supports mesh: https://github.com/greiman/SdFat
I tried to compile locally using local versions of the SdCardLogHandlerRK (to avoid 0.0.7) and the new SdFat libraries and get the following error:

lib/SdCardLogHandlerRK/src/SdCardLogHandlerRK.h:36:2: note: candidate: SdCardLogHandler::SdCardLogHandler(SdFat&, uint8_t, uint8_t, LogLevel, spark::LogCategoryFilters)
  SdCardLogHandler(SdFat &sd, uint8_t csPin, uint8_t divisor, LogLevel level = LOG_LEVEL_INFO, LogCategoryFilters filters = {});
  ^
lib/SdCardLogHandlerRK/src/SdCardLogHandlerRK.h:36:2: note:   no known conversion for argument 3 from 'SPISettings {aka particle::__SPISettings}' to 'uint8_t {aka unsigned char}'

Thanks for all your great work!