upd readme

add python dist-packages to PATH

install mpy-cross-v6

add pylint, create version 3

mk helper scrips +x

improve the README

scripts got (hopefully) +x permissions now

use ubuntu 22.04 LTS for db and base version 36

decision: stay with 18.04 until all linux ws are 22.04

ora.h and run.sh get +x permission

java+mvn+docker must be installed

init