Add csv support

[philschmid]

what does this PR do?

This PR adds support for zero-code deployment with content-type text/csv. Test data can be found here https://docs.google.com/spreadsheets/d/1757Tw3KnUV_vATJG7esYEzOh0Al_XtFPPur6M7jB-d4/edit#gid=0.

This being said task zero-shot-classification and table-question-answering are not with text/csv due to incompatible structure of the request body. See here https://huggingface.co/docs/sagemaker/inference#inference-toolkit---api-description

Attention: To use text/csv the csv you send need to include column header corresponding to the dictionary key.
Example for text-classification sentiment-analysis token-classification feature-extraction fill-mask summarization translation_xx_to_yy text2text-generation text-generation

inputs
I like you.
I love you.

question-answering

question, context
where do I live?,My Name is Philipp and I live in Nuremberg.
where is Berlin?,Berlin is the capital of Germany.

Images of the test

[vdantu]

LGTM

[philschmid]

I cannot merge it