Custom params encoders

What's Changed

• Tested with Crystal 1.3.0

• Accept Float32 and Float64 as params value by @mamantoha in #166

• Add read_timeout support by @kates in #169

• Add custom params encoders by @mamantoha in #167
  (thanks @cyangle for the idea in #162)

  It is now possible to use a custom params encoder. For example Crest::NestedParamsEncoder:

  response = Crest.post(
    "http://httpbin.org/post",
    {"size" => "small", "topping" => ["bacon", "onion"]},
    params_encoder: Crest::NestedParamsEncoder
  )
  # => curl -X POST http://httpbin.org/post -d 'size=small&topping=bacon&topping=onion' -H 'Content-Type: application/x-www-form-urlencoded'

  By defaulf Crest::FlatParamsEncoder is used:

  response = Crest.post(
    "http://httpbin.org/post",
    {"size" => "small", "topping" => ["bacon", "onion"]}
  )
  # => curl -X POST http://httpbin.org/post -d 'size=small&topping[]=bacon&topping[]=onion' -H 'Content-Type: application/x-www-form-urlencoded'

New Contributors

• @kates made their first contribution in #169

Full Changelog: v1.0.1...v1.1.0