Improve CLI and rewrite documentation

Contents (#739)

IMPORTANT: There are 4 breaking changes.

Enhancements

• 💥 BREAKING CHANGE: Run local example service (Fibonacci calculator) if example is used as the service namespace in Child.ask
• 💥 BREAKING CHANGE: Raise error if example is used as the service namespace in service configurations
• Add Fibonacci sequence example function

Fixes

• Update log message advising use of octue twined question command

Refactoring

• 💥 BREAKING CHANGE: Remove --logger-uri option from CLI
• 💥 BREAKING CHANGE: Un-nest CLI commands for asking questions
• Factor out template setting as a class

Chores

• Remove check-yaml pre-commit check

Documentation

• Overhaul docs layout
• Add getting started guides for using services, creating services, and managing infrastructure for services
• Move most old docs into core concepts section
• Consolidate old twined repo docs
• Add troubleshooting infrastructure page
• Add glossary
• Use new URL for docs
• Update CLI help text
• Simplify installation instructions
• Enable code snippet copy buttons
• Adjust wording and style on licence and version history pages
• Add support page
• Improve authentication instructions

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Upgrade instructions

💥 Run local example service (Fibonacci calculator) if `example` is used as the service namespace in service configurations

Stop using example as a service namespace unless you want to trigger the local example service.

💥 Raise error if example is used as the service namespace in service configurations

Stop using "example" as a service namespace in the service configuration class or octue.yaml file.

💥 Un-nest CLI commands for asking questions

Use:

• octue twined question ask instead of octue twined question ask remote
• octue twined question ask-local instead of octue twined question ask local

💥 Remove `--logger-uri` option from CLI

Stop providing the --logger-uri option to the CLI