Add API endpoint with all offers

[orangefren]

Is your feature request related to a problem? Please describe. We'd like to integrate offers from lnp2pBot into our service - OrangeFren.com, but without an API there's no elegant way of doing this

Describe the solution you'd like An API endpoint that returns a JSON with an array of all the offers. Each offer being an object of some sort within the array.

Describe alternatives you've considered N/A

Additional context N/A