Add input parameter to always send a fully qualified hostname and service name (useful for autonomous)

[loiclefevre]

Description

This PR provides a new input parameter: --fully-qualified-names to ask for returning fully qualified hostname and service respectively in database_host and database_service output parameters.

Fixes #20

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• 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
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules