Updated LittleFS v2.8.0

v4.0.0 compatible to unpack espressif32 Arduino core 2.0.x / 3.0.x old and new LittleFS filesystem
Filesystem build with v4.0.0 can not be read from Arduino core 2.0.x

Add --from-file option

LittleFS v2.5.1
v3.2.0 compatible to pack espressif32 Arduino core 2.0.x / 3.0.x filesystem and unpack Arduino Core 2.0.x filesystem.

Can be used to build the Filesystem for core 2.0.x and 3.0.x since compatible for both!