Fixes #28440 - Help contains squeezed options

[ofedoren]

This PR introduces a way to squeeze options in help output by grouping the options in 'families'.

TODO:

• - Docs
• - Tests

Example (for better examples see theforeman/hammer-cli-foreman#489):

class MyCommand
  option_family(description: 'Desc for the main switch') do
    parent '--item-id', '', 'Item desc 1'
    child '--item', '', 'Item desc 2'
  end
end

# > hammer -h
# ...
# Options:
#   --item[-id]            Desc for the main switch
# ...
# > hammer full-help
# ...
# Options:
#   --item                   Item desc 2
#   --item-id                Item desc 1
# ... 

[xprazak2]

Provides a base for squeezed options and seems ok, but my knowledge in this area is fairly limited.

[shiramax]

great work @ofedoren !

[shiramax]

switch is not so clear to me in that context. what does it means?

[ofedoren]

switches are '--something' or ['--option-one', '--option-two']. It's how it's named in Clamp.