/cmd bot improvements

[mordamax]

Detailed description: https://hackmd.io/C2oYm6lOSYm1LQWyxLHd2w?both

HL Roadmap

• Make adding commands to be defined from one place. #127
  Nothing changes from the cmd running perspective, just internal refactoring.
  • Make a final structure of .cmd.json
  • Move the command-bot config onto command-bot-scripts along reading .cmd.json files as the command definitions!
  • arguments are still positioned (to not break the existing experience)
• Update try-runtime script #145
• Provide /cmd help with list of possible commands and aliases #97
  • create aliases
  • generate list of commands based on command-bot-scripts
• Add bot clean command, which removes bot comments #158
• improve docs #170
• Improve Reliability (sometimes bot doesn't respond to comments, need to learn why) #132
  • change the logging (stop posting the full event output, improve readability)
  • add monitoring and alerting 🚨
• [EngAut] Prepare command-bot scripts to work in monorepo #174
• Validate commands based on *.cmd.json #134

[mordamax]

Closing this, and further dev will be tracked in #113 and #128