Add Filterameter gem to Rails Search category

[toddkummer]

This gem enables filter parameters to be declared in query classes or controlllers.

https://rubygems.org/gems/filterameter

Thanks for contributing to the Ruby Toolbox catalog! <3

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[toddkummer]

All three CI steps pass locally. Are there additional steps I should complete for this PR?

[colszowka]

Thanks for contributing @toddkummer - Not sure what went wrong there, somehow the build got stuck it seemed. It all worked fine again after a rebase.

I merged this now, although I think some cleanup is in order between the search / scopes categories and a category which I think is actually missing so far, for query filters, like this one or rubanok: rubytoolbox/rubytoolbox#1356

If you are interested in taking a look, please feel free to submit a PR against this too 👍

[toddkummer]

@colszowka I created the following PR to split up the category. There are definitely (at least) two types of gems in it.

#901