Allow searching by value

[SpicyLemon]

Feature Request: Add ability to find entries by value while using json_explorer.

[SpicyLemon]

My initial thought here is to include the value in the line for entries that are null, text, or numbers (or are not arrays or objects).

That might run into issues with longer entries, though, so some research is needed.

Other options:

• Provide the search value during CLI invocation.
• Provide another shell function that does the searching (and provide an easy way to hook that into the json-explorer fzf stuff).

[SpicyLemon]

Here's my plan right now:

1. Create a new shell function/script that will return paths based on a jq test(val) search.
2. Provide a key binding in the json_explorer fzf setup that will provide the current query as the val and update the query with the results.

There's a small hiccup, though. Currently, fzf doesn't have a way to update the query based on the results of a command execution. I found a ticket for it though: junegunn/fzf#2465 and created a PR for it: junegunn/fzf#2559
But I don't know when it'll get any attention.

So for now, I'll at least create the search function/script.

[SpicyLemon]

Issue #7 created for part 1 of my plan above.

[SpicyLemon]

I have some thoughts on this now that json_search is ready and some performance issues have been addressed in json_info.

For this, we'll want some key-binding in fzf for various actions. Here's what I'm thinking:
ctrl-f = find: will call json_search -q {} -f $filename --hide-values then transform it into a " | " delimited list.
ctrl-F = find (ignore case): will call json_search -q {} --flags i -f $filename --hide-values then transform it into a " | " delimited list.
ctrl-t = this: will change the query to the currently selected item.
ctrl-x = clear the query.