Enable TLS for HTTP API and add endpoints

[matth-x]

This PR adds a few more endpoints to the HTTP API of the Simulator and enables secure access via TLS and HTTP Basic Auth so that the Simulator can run on a public server and expose its API to the internet.

To configure the public HTTP API, the following files need to be provided in the mo_store folder:

• api_cert.pem: TLS certificate
• api_key.pem: private TLS key
• api.jsn: server settings as a JSON file. Example file containing all possible configurations:

{
    "url": "https://0.0.0.0:8443",
    "user": "<HTTP Basic Auth user>",
    "pass": "<HTTP Basic Auth password>"
}