[LU-15515] Update epython scripts to python3 and add more of them from other repos

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Affects Version/s: Lustre 2.15.0
• Assignee: Oleg Drokin
• Reporter: Oleg Drokin

Description

Currently epython scripts are python2 and current pykdump is python3 based so we need to update.

Additionally need to pull useful scripts from other sources like https://github.com/askulysh/lustredbg.git