msi: Disable auto start after install

[daipom]

Many users would be happier if it didn't start automatically:

• No one would be happy to start Fluentd with the default settings.
• It opens some ports by default. It is undesirable from a security point of view.

In addition, we should make sure that the service starts after all install actions are completed. To achieve it, this is preferable for now.

[daipom]

In addition, we should make sure that the service starts after all install actions are completed.

We actually need this for

• 494

[daipom]

Thanks for your review!