Feat/script cluster

[criadoperez]

Description

• Fixed a bug checking dependencies. Missing a space on new line 26
• Added check if docker-compose is installed check --docker flag is used
• Added help instructions to use the script. Help is displayed when:
  • --help flag is on
  • when script is executed with no commands ./script/cluster
  • a command has an incorrect value, like ./script/cluster xxx

New help command display:

% ./scripts/cluster --help 
Usage: cluster {consensus} [{command}] [{flags}]
Consensus:
  ibft            Start Supernets test environment locally with ibft consensus
  polybft         Start Supernets test environment locally with polybft consensus
Commands:
  stop            Stop the running environment
  destroy         Destroy the running environment
Flags:
  --docker        Run using Docker (requires docker-compose).
  --help          Display this help information
Examples:
  cluster polybft -- Run the script with the polybft consensus
  cluster polybtt --docker -- Run the script with the polybft consensus using docker
  cluster polybft stop -- Stop the running environment

Changes include

• Bugfix (non-breaking change that solves an issue)
• Hotfix (change that solves an urgent issue, and requires immediate attention)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)

[criadoperez]

Fixed the conflict. Ready to merge.