RegisterBodyDecoder for text/csv

[cosma]

Hello, I implemented your library and I have when I upload a csv file. error in openapi3filter.RequestError: request body has an error: failed to decode request body: path file: unsupported content type "text/csv"

Could you also please register a body decoder for CSV files RegisterBodyDecoder("text/csv", csvBodyDecoder)

kin-openapi/openapi3filter/req_resp_decoder.go

Lines 999 to 1008 in 8718011

	func init() {
	RegisterBodyDecoder("text/plain", plainBodyDecoder)
	RegisterBodyDecoder("application/json", jsonBodyDecoder)
	RegisterBodyDecoder("application/x-yaml", yamlBodyDecoder)
	RegisterBodyDecoder("application/yaml", yamlBodyDecoder)
	RegisterBodyDecoder("application/problem+json", jsonBodyDecoder)
	RegisterBodyDecoder("application/x-www-form-urlencoded", urlencodedBodyDecoder)
	RegisterBodyDecoder("multipart/form-data", multipartBodyDecoder)
	RegisterBodyDecoder("application/octet-stream", FileBodyDecoder)
	}

Any help is super appreciated!
Thanks in advanced and this is quite urgent.

[fenollp]

Here's a starting point: https://pkg.go.dev/encoding/csv

If someone finds a way to write an enc/dec/oder for text/csv that does not bring non-std dependencies I'll probably merge this.

I might get around to it but it's /not high/ on my list.

[fenollp]

This should be a simple enough starting point: #730