Add --list-inputs option to all OSRM tools for deployment scripts

[afarber]

Issue

Fixes #2865

This PR adds a --list-inputs option to all OSRM tools that outputs the required and optional input file extensions. This helps deployment scripts know which files need to be copied for each tool.

Example usage:

$ osrm-routed --list-inputs
required .osrm.datasource_names
required .osrm.ebg_nodes
required .osrm.edges
...                                                                                                                            
optional .osrm.hsgr                                                                                                            
optional .osrm.cells

Tasklist

• CHANGELOG.md entry (How to write a changelog entry)
• update relevant Wiki pages
• add tests (see testing documentation)
• review
• adjust for comments

Requirements / Relations

#3920