FI-3395 Fix suite describe with routes

[Shaumik-Ashraf]

Summary

Fix the bug where bundle exec inferno suite describe <suite id> command fails in test kits that mount custom routes. The bug was because the suites booter (i.e: Inferno::Application.start('suites')) needs lib/inferno.rb loaded, and the CLI wasn't loading it. The backdraw is that this kicks off loading the rest of Inferno, but I think the CLI is fast enough that this is negligible.

Testing Guidance

1. Checkout this branch
2. In a sibling directory, clone your favorite test kit that mounts routes, say smart-app-launch-test-kit.
3. Modify the test kit's Gemfile to use the checked out inferno core:

gem 'inferno_core', path: '../inferno-core'

4. bundle install
5. Run bundle exec inferno suites and pick any suite id
6. Run bundle exec inferno suite describe <suite id> and confirm it works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.29%. Comparing base (2bb20b5) to head (21ca865).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #577   +/-   ##
=======================================
  Coverage   84.29%   84.29%           
=======================================
  Files         274      275    +1     
  Lines       11663    11668    +5     
  Branches     1302     1302           
=======================================
+ Hits         9831     9836    +5     
  Misses       1822     1822           
  Partials       10       10           

Flag	Coverage Δ
backend	92.62% <100.00%> (+<0.01%)	⬆️
frontend	79.20% <ø> (ø)

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[Jammjammjamm]

Why don't move that definition out of lib/inferno.rb? It could be something like lib/inferno/route_storage.rb

module Inferno
  module RouteStorage
    def ...
    end
  end

  extend RouteStorage
end