Usability improvement for selects with ch-go

Hello!

some time ago, I've switched one of my applications from clickhouse-go to ch-go.
It turned out, writing the code for select queries is not quite easy, especially I was not able to find a good example of handling such query.

After some experiments I came up with working code, but it was not quite readable and human-friendly.

So I've created a small helper library to make the process a bit more fancy while not losing performance.

Please take a look:
- Blog post with motivation and my path to writing this package: https://vaniasin.com/chh-making-clickhouse-ch-go-user-friendly/
- Go package: https://github.com/nikita-vanyasin/chh

Do you think it is worth including as part of ch-go package? I can prepare a PR 👌🏻