Add totalBytes / usedBytes to SD/SDMMC to be same as SPIFFS#673

Merged

me-no-dev merged 3 commits intoespressif:masterfrom

luc-github:SD-PR2

Sep 28, 2017

Commits on Sep 23, 2017

Merge remote-tracking branch 'refs/remotes/espressif/master'
Luc
committed

Commits on Sep 27, 2017