feat: Introduce subscription resolvers using Mongoose Watch

Can we made it into the core of this tool by using Mongoose Watch

Something like this

```
UserMD.watch().on("change", (data) => {
if (data.operationType === "insert") {
console.log("User inserted: ", data.fullDocument);
}

if (data.operationType === "replace") {
console.log("User updated: ", data.fullDocument);
}

if (data.operationType === "delete") {
// Like here the user was deleted so it's time to detelet his or her information from all the groups.
console.log("User deleted: ", data._id);
}
});
```
This is the most common Mongo DB and GraphQL issue so if this tool solve it like it solved the query long time making then this tool will get a boost up.

_Originally posted by @maheraldous in https://github.com/graphql-compose/graphql-compose-mongoose/issues/409#issuecomment-1169083608_