Add 'query' to available attribute writers so it can be set with 'new'

[msievers]

At the the moment, HTTPI::Request.new ignores query as a parameter.

HTTPI::Request.new(url: "http://example.org", query: { foo: "bar" })
=> #<HTTPI::Request:0x02b05598 @url=#<URI::HTTP:0x02b05188 URL:http://example.org>>

Expected behaviour would be

HTTPI::Request.new(url: "http://example.org", query: { foo: "bar" })
=> #<HTTPI::Request:0x0579cbd8 @url=#<URI::HTTP:0x0579c890 URL:http://example.org?foo=bar>>

This PR adds query to Request::Attributes so that it is called in Request#mass_assign.

[rogerleite]

Thanks!

[rogerleite]

@msievers we can wait for more improvements/fixes or do you need a new version for now?

[msievers]

@d-konovalov As far as I can see, this PR does not change Savons behaviour in your case, because

response = client.call(:auto_complete, message: {'query' => {'key1' => 'value1', 'key2' => 'value2'}})

message: { ... } only effects the request body, whereas the change introduced by this PR permits you to initialize a HTTPI::Request with a url query parameter, which only effects the url, not the request body.

[msievers]

@rogerleite My code actually circumvents this issue by first creating a request and setting the query afterwards. So it's ok for me to wait some time for a new release.

[rogerleite]

@msievers 👍