Support for Basic Auth with External Solr API #140
Description
Is your feature request related to a problem? Please describe.
I have some Solr's that have basic auth, and I can't connect to them with RRE since we don't support that.
Describe the solution you'd like
Provide in solr-settings.json a username and password for Basic auth!
Describe alternatives you've considered
Additional context
Add any other context or screenshots about the feature request here.