added generic ResolveT and "must" methods

[Place1]

This PR adds the following methods:

c := container.New()

db, err := container.ResolveT[Database](c)
if err != nil {
    // error
}

db := container.MustResolveT[Database](c)

container.MustSingleton(c, resolver)
container.MustNamedSingleton(c, "", resolver)
container.MustTransient(c, resolver)
container.MustNamedTransient(c, "", resolver)
container.MustCall(c, receiver)

[miladrahimi]

Thanks for your contribution. I'm checking the changes and wondering is it possible to separate different feature using different branches and pull requests?

[Place1]

How do you mean?

[miladrahimi]

At least three branchs (PRs) are needed.

1. Must
2. Generics
3. Error for Call method.

[Place1]

Yeah sure, I was hoping to do them all together but I can cherry-pick them into different PRs if you'd like.

[Place1]

thanks mate