Porting essential blacklight range limit functionality

[cgalarza]

First, I'd like to acknowledge all the work that people have put in the blacklight-range-limit plugin over the years. Without their effort I would not be submitting this PR today. Thank you! I hope that this new (potential) iteration allows for better support of this functionality.

The goal of this pull request is to port the essential functionality of the blacklight-range-limit plugin into blacklight core. This includes the form that allows a user to enter two years within a facet and excludes the histogram (and the associated functionality). Notably, this MR does not include any javascript.

Currently, the blacklight-range-limit plugin is not compatible with Blacklight 8. We are hoping that this port allows us to update our applications to Blacklight 8 while maintaining the core functionality provided by the blacklight-range-limit plugin.

Some notes:

• Feature test: I tried to add in a feature test, but in doing so a handful of other tests failed so I skipped it for now since the component tests cover a lot of what a feature test would have covered.
• Rubocop: Linting fails for code that is not part of this PR. I am not sure how to address that.
• Internalization: I copied over the translations available in the blacklight-range-limit plugin, but blacklight core covers a lot more languages and therefore there are missing translations.

Some potential additional features:

• Displaying min and max values might be helpful to give users a sense of what the range of values they can choose from are. In order to provide that, the Solr request would have to include the stats component. I wasn't sure how folks would feel about that, but depending on community feedback it's something that can be added in later.
• This MR provides inputs for numbers, but it could be expanded to provide different types of inputs. For example, character ranges (A-Z) or full date ranges.

My time is limited over the next few weeks. I will try to respond and help as much as possible, but would welcome the community's help in finishing this work.