Initial commit - implementing a wrapper around getting a property

We will want to expose some configuration to allow for this to be configured.  Syntax should be something along the lines of:

```ruby
CheckMate::Client.configure do |config|
  config.base_uri = 'https://partners-staging.checkmate.io'
  config.some_other_config_param = true
end
```

There should be lots of examples out there of this being done.