Gather and print System Information before running to give more information while debugging

[tkilias]

Background

• we often need to debug setups on user systems
• we typical need information about the system, e.g
  • OS
  • OS Version
  • Docker Daemon Version
  • Docker Client Version
  • Host can access Docker Hub
  • Docker container can access internet (Ubuntu)
  • bash version
  • gnu utils Version
  • installed exaslct Version
  • Project name
  • Repository Status + Sub module status
    • modified?
    • commit id history until first commit in main branch history
    • paths to exaslct.log files for the last X builds
    • Docker images with exasol script languages prefix
  • available disk space on /
  • are checksums ok

Acceptance Criteria

• would be a new command of exaslct (something like "diagnosis")
• add message like "Please send to Exasol"
• develop a bash script which collect the listed information and prints it to terminal and file
• the script needs to work on minimal dependencies
• the script needs to be as error resilient as possible and collect as much information as possible

Add new integration tests in installer scripts, for testing version number.
For that, extract most part of https://github.com/exasol/script-languages-container-tool/blob/main/installer/tests/test_exaslct_install_template_with_current_ref.sh into separate script and include via source (to keep trap/env variable/etc.)

[redcatbear]

Please elaborate which system information, where to gather to and triggered by what.