* mysql update to version 8
* changed package number and install dev tools
* added latest version parser
* removed sed for whitespaces - changed to grep.
* removed unnessacary cut from script.
* removed unnesscary grep.
* added definition for ubuntus.
* root password section moved from if
Co-authored-by: Dariy.Nurgaleev <d.nurgaleev@trueengineering.ru>