Add mapkick_options to location field

[Nevelito]

Description

Fixes #3147

Allows to configure mapkick_options on location field

field :coordinates,
  as: :location,
  stored_as: [:latitude, :longitude],
  mapkick_options: {
    style: 'mapbox://styles/mapbox/satellite-v9',
    controls: true
  }

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
  • Add documentation to location field docs.avohq.io#334
• I have added tests that prove my fix is effective or that my feature works

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[Paul-Bob]

Awesome! Thank you for this contribution @Nevelito!