As flashing a new LittleFS in case of e.g. a changed main.js is taking time and
the provided web interface is not the fastest to navigate we are introducing a
small script to upload the whole data folder to the esp.
It can also be sourced into a shell allowing for manual file uploads to the esp.
In addition we are also adding a "push_ota.sh" script designed to show its use as
well as uploading the recenty build firmware to the esp where future commits will
allow of SDCard based updates.
Signed-off-by: Mimoja <git@mimoja.de>