Requests can be made with binary content

[kdavisk6]

See #22

Scenario: Simple HTTP request can be where the request content is binary data provided directly by a user, not through the encoded.

Given: a request is made to a known endpoint,
When: the request is sent to the target,
And: the request contains binary data
And: a response is returned with a 200 response code
Then: the response can be read.

Additional Context
This test case verifies that users can provide byte[] or other binary type values as request content and that the requests should send that data to the target raw.