Add option to exclude component

[fstavela]

When we deploy an app, we can choose which components of that app we want to process with the --component parameter. If we don't specify that bonfire will process all of them.

Sometimes it would be helpful also to have the option to exclude a component from deployment, for example, if that component is broken. In that case, it would be more convenient to say --exclude-component c1, instead of having to specify all components except c1 with --component c2 c3 c4