Performance Improvements Suggestion: Avoid runtime checks for `this.GetService<T>()`

[rafaelsc]

Currently, Jab uses runtime checks to find the correct service factory inside GetService<T>, this could be done by the Jab in compile time improving the runtime performance.

So instead of this code to all new instances when have depencies:

public T GetService<T>() => this is IServiceProvider<T> provider ? provider.GetService() : throw CreateServiceNotFoundException<T>();

Jab.Performance.Basic.Mixed.IMix1 IServiceProvider<Jab.Performance.Basic.Mixed.IMix1>.GetService()
{
    Jab.Performance.Basic.Mixed.Mix1 service = new Jab.Performance.Basic.Mixed.Mix1(this.GetService<Jab.Performance.Basic.Singleton.ISingleton1>(), this.GetService<Jab.Performance.Basic.Transient.ITransient1>());
    TryAddDisposable(service);
    return service;
}

Update this code to avoid the this is IServiceProvider<T> runtime check.

Jab.Performance.Basic.Mixed.IMix1 IServiceProvider<Jab.Performance.Basic.Mixed.IMix1>.GetService()
{
    ISingleton1 singleton1 = ((IServiceProvider<ISingleton1>)this).GetService();
    ITransient1 transient1 = ((IServiceProvider<ITransient1>)this).GetService();
    Jab.Performance.Basic.Mixed.Mix1 service = new Jab.Performance.Basic.Mixed.Mix1(singleton1, transient1);
    TryAddDisposable(service);
    return service;
}

See: #168 (comment)