Model to its own crate

[elferherrera]

Proposal to move Prusto model to its own crate so it could be used by other projects that require to parse trino data but don't require a client

[nooberfsh]

Hi, Thanks for the PR.
At first I thought it was only the models are moved to a separate crate, not including the types, currently types are implemented in a very opinioned way and I don't think they are useful for other implementations, so I think the types should keep in the prusto crate.
Than I found models are depend on types which is unfortunate. Do you have any ideas about this.

[elferherrera]

I'm slowly getting familiar with trino's response, so I don't know how the data is encoded. What made you select those types?