feat: add self keyword to import a module

[enitrat]

Feature Request

Describe the Feature Request

Currently when testing my contracts, to test the assertions of events, I might need to import the contract and it's internal content, like:

use registry::Registry
use registry::Registry::{
    DataRegistered, DataUpdated
};

Registry here is a contract module. I would like to be able to write:

use registry::Registry::{
    self, DataRegistered, DataUpdated
};

[g4titanx]

hey assign this to me