Add support for suggestion column data types?

[danielbeach]

@M-Farag I was thinking about adding some functionality to suggest data types for all the column in a CSV file? I think that would be useful. Maybe just take like to top few rows and figure out mainly if something is ...

1. string
2. int
3. float
4. bool
5. date or datetime <- would probably be harder.
   Thoughts?

[M-Farag]

@danielbeach , Yeah good idea. I can start planning it as a feature 🦾