Render ctx table

[yogeshjain999]

Add Trailblazer::Developer::Context.render(ctx, *keys) to render ctx using hirb table, for better visibility 👓

ctx = Trailblazer::Context({ current_user: User.new(1), params: { name: "John" } })
ctx[:say] = "something"
ctx[:params] = { id: 1 }

Trailblazer::Developer::Render::Context.(ctx) =>

********** ctx **********
┌───────────────┬────────────────────────────────────────┐
│ key           │ value                                  │
├───────────────┼────────────────────────────────────────┤
│ :current_user ╎ #<struct RenderContextTest::User id=1> │
│ :params       ╎ {:name=>"John"}                        │
└───────────────┴────────────────────────────────────────┘

********** ctx mutations **********
┌─────────┬─────────────┐
│ key     │ value       │
├─────────┼─────────────┤
│ :say    ╎ "something" │
│ :params ╎ {:id=>1}    │
└─────────┴─────────────┘