[FL-520] Filesystem Api and App (#280)

* update fatfs integer types
* fix sector size to 512
* fix sector size calculation
* common fs api
* fs api realization (sd card + fat fs)
* better sector size definition
* more api realization fns
* add error description api, add common api
* fix api flag naming, run app
* add fs_info call
* disable fatfs strfuncs, enable fatfs chmod
* rework filesystem app
* sd detect cycle, sd menu, sd eject feature
* fix sd detect cycle
* sd card format routine
* ui improvements, sd info routine
* properly unmount card
* separate mode flags
* add api folder, move app, rename app
* fix api naming
* update st-card-test to use api
* update path to app
* fixed potential problem of using sizeof union
* updated api documentation, new time/date fns
* update codeowners
* changed app requirements
* changed app order
* sd insert/remove log

.github/CODEOWNERS

@@ -43,6 +43,8 @@ applications/gui/** @skotopes
 # iButton
 
 applications/ibutton/** @DrZlo13
+lib/cyfral/** @DrZlo13
+lib/onewire/** @DrZlo13
 
 # IR
 
@@ -61,9 +63,12 @@ applications/menu/** @skotopes
 applications/nfc/** @skotopes
 lib/ST25RFAL002/** @skotopes
 
-# SD Card
+# SD Card and filesystem
 
 applications/sd-card-test/** @DrZlo13
+applications/sd-filesystem/** @DrZlo13
+lib/common-api/filesystem-api.h @DrZlo13
+lib/fatfs/** @DrZlo13
 
 # Power control app
 
@@ -74,3 +79,7 @@ applications/power/** @skotopes
 applications/music-player/** @DrZlo13
 applications/floopper-bloopper/** @glitchcore
 applications/gpio-tester/** @glitchcore
+
+lib/app-template/** @DrZlo13
+lib/qrcode/** @DrZlo13
+lib/callback-connector/** @DrZlo13