Make this package PEP-561 compatible by adding a py.typed marker

[Priyansh121096]

Describe the feature

I see that static type checking was discussed in #69 and mypy was enabled in #91. Do people think it's a good idea to add a py.typed marker so that packages depending on trino can type check themselves against it?

Right now, there's no way to force mypy to type check against this site-packages which lack this marker (ref).

Describe alternatives you've considered

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

[hashhar]

Good idea, if you are still willing to send a PR we'd appreciate it. Sorry it took so long to reply.

[Priyansh121096]

Good idea, if you are still willing to send a PR we'd appreciate it. Sorry it took so long to reply.

@hashhar raised #514