Restructure cache classes, SD_FAT_VERSION from string to integer

2.0.3

Change SD_FAT_VERSION from string to integer

Timestamp fix, edit src for cplint errors

Add time st

First Version 2 release

2.0.1

Fix cache bug for FAT16/FAT32

Fix open bug

1.1.4

Fix open bug

Add null pointer checks

1.1.3

Add null pointer checks

Use fcntl.h for ESP32

1.1.2

Use fcntl.h for ESP32

Fix FatFile::printName() bug

1.1.1

Fix FatFile::printName() bug

Support for SdFatLite library.

1.1.0

Support for SdFatLite library.

Add openCwd(), fix library.properties for Particle

1.0.16

Add openCwd(), fix library.properties for Particle

Particle SPI fix, ls returns bool

1.0.15

Partivle SPI fix, ls returns bool