[BZ 970784] After successful bundle deployment, discover new resources

After a successful bundle deployment, initiate resource discovery for all the affected resources. This should ensure that user doesn't have to manually add new resources to their inventory (or force discovery process).
I did think about this (and asked in IRC also shortly), but since it's only used internally, I didn't think it was an issue. Also, it mimicks the behaviour of executeServiceScanDeferred() (without parameters) that always has a delay - the previous behaviour was also weird since with resourceIds it would be instant and without resourceId it would be with a delay.

One thing could be removing the scanDelayInMillis parameter and always do the delay (like in the other call), but would that cause unwanted side effects (AS7 plugin is calling this method indirectly in many places) ?